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68805896 = 2326931973
BaseRepresentation
bin1000001100111…
…10010100001000
311210110200221112
410012132110020
5120103242041
610454425452
71463561165
oct406362410
9153420845
1068805896
1135925985
121b062288
1311341163
1491d106c
156091deb
hex419e508

68805896 has 16 divisors (see below), whose sum is σ = 129494700. Its totient is φ = 34273984.

The previous prime is 68805889. The next prime is 68805901. The reversal of 68805896 is 69850886.

It can be written as a sum of positive squares in 2 ways, for example, as 68724100 + 81796 = 8290^2 + 286^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13835 + ... + 18138.

Almost surely, 268805896 is an apocalyptic number.

It is an amenable number.

68805896 is a deficient number, since it is larger than the sum of its proper divisors (60688804).

68805896 is a wasteful number, since it uses less digits than its factorization.

68805896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32248 (or 32244 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 50.

The square root of 68805896 is about 8294.9319466768. The cubic root of 68805896 is about 409.7716277268.

The spelling of 68805896 in words is "sixty-eight million, eight hundred five thousand, eight hundred ninety-six".

Divisors: 1 2 4 8 269 538 1076 2152 31973 63946 127892 255784 8600737 17201474 34402948 68805896