801 (number)
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Short description: Natural number
| ||||
|---|---|---|---|---|
| Cardinal | eight hundred one | |||
| Ordinal | 801st (eight hundred first) | |||
| Factorization | 32 × 89 | |||
| Greek numeral | ΩΑ´ | |||
| Roman numeral | DCCCI | |||
| Binary | 11001000012 | |||
| Ternary | 10022003 | |||
| Quaternary | 302014 | |||
| Quinary | 112015 | |||
| Senary | 34136 | |||
| Octal | 14418 | |||
| Duodecimal | 56912 | |||
| Hexadecimal | 32116 | |||
| Vigesimal | 20120 | |||
| Base 36 | M936 | |||
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]
- [math]\displaystyle{ 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. }[/math]
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]
See also
- 801 (disambiguation)
References
- ↑ Sloane, N. J. A., ed. "Sequence A055393 (Sum of a square and a nonnegative cube in more than one way)". OEIS Foundation. https://oeis.org/A055393.
- ↑ Sloane, N. J. A., ed. "Sequence A003998 (Numbers that are a sum of distinct positive cubes in more than one way)". OEIS Foundation. https://oeis.org/A003998.
- ↑ Barry, Kieren (1999), The Greek Qabalah: Alphabetical Mysticism and Numerology in the Ancient World, Weiser Books, pp. 110–111, ISBN 9781609252274, https://books.google.com/books?id=w70rWN_-ANAC&pg=PA110.
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