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17969864404 = 2244328513557
BaseRepresentation
bin10000101111000101…
…100101111011010100
31201101100110200202111
4100233011211323110
5243300241130104
612131044320404
71204211220142
oct205705457324
951340420674
1017969864404
11769157a108
1235960a3104
131904c0b97b
14c26824592
15702904404
hex42f165ed4

17969864404 has 24 divisors (see below), whose sum is σ = 31538168928. Its totient is φ = 8958986400.

The previous prime is 17969864387. The next prime is 17969864447. The reversal of 17969864404 is 40446896971.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5050194 + ... + 5053750.

It is an arithmetic number, because the mean of its divisors is an integer number (1314090372).

Almost surely, 217969864404 is an apocalyptic number.

It is an amenable number.

17969864404 is a deficient number, since it is larger than the sum of its proper divisors (13568304524).

17969864404 is a wasteful number, since it uses less digits than its factorization.

17969864404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6855 (or 6853 counting only the distinct ones).

The product of its (nonzero) digits is 10450944, while the sum is 58.

The spelling of 17969864404 in words is "seventeen billion, nine hundred sixty-nine million, eight hundred sixty-four thousand, four hundred four".

Divisors: 1 2 4 443 886 1772 2851 3557 5702 7114 11404 14228 1262993 1575751 2525986 3151502 5051972 6303004 10141007 20282014 40564028 4492466101 8984932202 17969864404