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808975804 = 2271317239547
BaseRepresentation
bin110000001101111…
…111110110111100
32002101020020011211
4300031333312330
53124044211204
6212135054204
726022116020
oct6015776674
92071206154
10808975804
1138571154a
121a6b11364
13cb7a6510
1479624380
154b04b804
hex3037fdbc

808975804 has 96 divisors (see below), whose sum is σ = 1856010240. Its totient is φ = 299400192.

The previous prime is 808975771. The next prime is 808975819. The reversal of 808975804 is 408579808.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1478659 + ... + 1479205.

It is an arithmetic number, because the mean of its divisors is an integer number (19333440).

Almost surely, 2808975804 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 808975804, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (928005120).

808975804 is an abundant number, since it is smaller than the sum of its proper divisors (1047034436).

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

808975804 is a wasteful number, since it uses less digits than its factorization.

808975804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 827 (or 825 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 49.

The square root of 808975804 is about 28442.4999604465. The cubic root of 808975804 is about 931.7766953207.

The spelling of 808975804 in words is "eight hundred eight million, nine hundred seventy-five thousand, eight hundred four".

Divisors: 1 2 4 7 13 14 17 26 28 34 52 68 91 119 182 221 238 239 364 442 476 478 547 884 956 1094 1547 1673 2188 3094 3107 3346 3829 4063 6188 6214 6692 7111 7658 8126 9299 12428 14222 15316 16252 18598 21749 28441 28444 37196 43498 49777 52819 56882 65093 86996 99554 105638 113764 120887 130186 130733 199108 211276 241774 260372 261466 369733 483548 522932 739466 846209 915131 1478932 1692418 1699529 1830262 2222461 3384836 3399058 3660524 4444922 6798116 8889844 11896703 15557227 23793406 28891993 31114454 47586812 57783986 62228908 115567972 202243951 404487902 808975804