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808909113100 = 2252117110357351
BaseRepresentation
bin10111100010101101011…
…11011000011100001100
32212022221021012120121111
423301112233120130030
5101223121213104400
61415335133341404
7112304344004464
oct13612657303414
92768837176544
10808909113100
11292069119290
12110932037864
135b38395712a
142b21967cba4
15160955193ba
hexbc56bd870c

808909113100 has 72 divisors (see below), whose sum is σ = 1941879211776. Its totient is φ = 290005800000.

The previous prime is 808909113091. The next prime is 808909113101. The reversal of 808909113100 is 1311909808.

It is a happy number.

It is a super-2 number, since 2×8089091131002 (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (808909113101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5100576 + ... + 5256775.

It is an arithmetic number, because the mean of its divisors is an integer number (26970544608).

Almost surely, 2808909113100 is an apocalyptic number.

It is an amenable number.

808909113100 is an abundant number, since it is smaller than the sum of its proper divisors (1132970098676).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

808909113100 is a wasteful number, since it uses less digits than its factorization.

808909113100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10357447 (or 10357440 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 40.

The spelling of 808909113100 in words is "eight hundred eight billion, nine hundred nine million, one hundred thirteen thousand, one hundred".

Divisors: 1 2 4 5 10 11 20 22 25 44 50 55 71 100 110 142 220 275 284 355 550 710 781 1100 1420 1562 1775 3124 3550 3905 7100 7810 15620 19525 39050 78100 10357351 20714702 41429404 51786755 103573510 113930861 207147020 227861722 258933775 455723444 517867550 569654305 735371921 1035735100 1139308610 1470743842 2278617220 2848271525 2941487684 3676859605 5696543050 7353719210 8089091131 11393086100 14707438420 16178182262 18384298025 32356364524 36768596050 40445455655 73537192100 80890911310 161781822620 202227278275 404454556550 808909113100