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68904294876 = 223214947128053
BaseRepresentation
bin100000000101100000…
…1000001100111011100
320120212001120212000100
41000023001001213130
52112103444414001
651353150101100
74656340562034
oct1001301014734
9216761525010
1068904294876
112724975064a
121142baaa790
13666143b821
1434992b48c4
151bd4327586
hex100b0419dc

68904294876 has 36 divisors (see below), whose sum is σ = 174187758472. Its totient is φ = 22966382304.

The previous prime is 68904294779. The next prime is 68904294883. The reversal of 68904294876 is 67849240986.

68904294876 is a `hidden beast` number, since 68 + 90 + 4 + 2 + 9 + 487 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 474066 + ... + 602118.

Almost surely, 268904294876 is an apocalyptic number.

It is an amenable number.

68904294876 is an abundant number, since it is smaller than the sum of its proper divisors (105283463596).

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

68904294876 is a wasteful number, since it uses less digits than its factorization.

68904294876 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143010 (or 143005 counting only the distinct ones).

The product of its (nonzero) digits is 41803776, while the sum is 63.

The spelling of 68904294876 in words is "sixty-eight billion, nine hundred four million, two hundred ninety-four thousand, eight hundred seventy-six".

Divisors: 1 2 3 4 6 9 12 18 36 14947 29894 44841 59788 89682 128053 134523 179364 256106 269046 384159 512212 538092 768318 1152477 1536636 2304954 4609908 1914008191 3828016382 5742024573 7656032764 11484049146 17226073719 22968098292 34452147438 68904294876