801 (number)

← 800 801 802 →
List of numbers — Integers ← 0 100 200 300 400 500 600 700 800 900 →
Cardinal	eight hundred one
Ordinal	801st; (eight hundred first)
Factorization	32 × 89
Greek numeral	ΩΑ´
Roman numeral	DCCCI
Binary	11001000012
Ternary	10022003
Octal	14418
Duodecimal	56912
Hexadecimal	32116

801 (eight hundred [and] one) is the natural number following 800 and preceding 802.

801 is the sum of a square and positive cube in more than one way, and a sum of distinct positive cubes in more than one way:^[1]^[2]

801=17^{2}+8^{3}=26^{2}+5^{3}=1^{3}+2^{3}+4^{3}+6^{3}+8^{3}=2^{3}+4^{3}+9^{3}.

In the gematria of 2nd century bishop Irenaeus, 801 stands for both the Greek word for a dove, and for Alpha and Omega, and therefore represents God in two ways.^[3]

References[]

^ Sloane, N. J. A. (ed.). "Sequence A055393 (Sum of a square and a nonnegative cube in more than one way)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
^ Sloane, N. J. A. (ed.). "Sequence A003998 (Numbers that are a sum of distinct positive cubes in more than one way)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.
^ Barry, Kieren (1999), The Greek Qabalah: Alphabetical Mysticism and Numerology in the Ancient World, Weiser Books, pp. 110–111, ISBN 9781609252274.

[1] Sloane, N. J. A. (ed.). "Sequence A055393 (Sum of a square and a nonnegative cube in more than one way)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.

[2] Sloane, N. J. A. (ed.). "Sequence A003998 (Numbers that are a sum of distinct positive cubes in more than one way)". The On-Line Encyclopedia of Integer Sequences. OEIS Foundation.

[3] Barry, Kieren (1999), The Greek Qabalah: Alphabetical Mysticism and Numerology in the Ancient World, Weiser Books, pp. 110–111, ISBN 9781609252274.

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801 (number)

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