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85374987908 = 22722331610921
BaseRepresentation
bin100111110000010111…
…1101110111010000100
322011100221002202021012
41033200233232322010
52344321444103113
6103115402141352
76111446265200
oct1174057567204
9264327082235
1085374987908
1133230a56051
1214667ab1858
138087888432
1441bc96db00
15234a2e7aa8
hex13e0beee84

85374987908 has 72 divisors (see below), whose sum is σ = 187206050304. Its totient is φ = 33869404800.

The previous prime is 85374987869. The next prime is 85374987911. The reversal of 85374987908 is 80978947358.

It is a super-2 number, since 2×853749879082 (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 165713 + ... + 445208.

It is an arithmetic number, because the mean of its divisors is an integer number (2600084032).

Almost surely, 285374987908 is an apocalyptic number.

It is an amenable number.

85374987908 is an abundant number, since it is smaller than the sum of its proper divisors (101831062396).

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

85374987908 is a wasteful number, since it uses less digits than its factorization.

85374987908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 610993 (or 610984 counting only the distinct ones).

The product of its (nonzero) digits is 121927680, while the sum is 68.

The spelling of 85374987908 in words is "eighty-five billion, three hundred seventy-four million, nine hundred eighty-seven thousand, nine hundred eight".

Divisors: 1 2 4 7 14 23 28 31 46 49 62 92 98 124 161 196 217 322 434 644 713 868 1127 1426 1519 2254 2852 3038 4508 4991 6076 9982 19964 34937 69874 139748 610921 1221842 2443684 4276447 8552894 14051183 17105788 18938551 28102366 29935129 37877102 56204732 59870258 75754204 98358281 119740516 132569857 196716562 265139714 393433124 435586673 530279428 688507967 871173346 927988999 1377015934 1742346692 1855977998 2754031868 3049106711 3711955996 6098213422 12196426844 21343746977 42687493954 85374987908