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68969792 = 263134763
BaseRepresentation
bin1000001110001…
…10010101000000
311210210000202202
410013012111000
5120124013132
610502132332
71465143053
oct407062500
9153700682
1068969792
1135a28031
121b1210a8
131139a938
149234a9a
1560c5762
hex41c6540

68969792 has 28 divisors (see below), whose sum is σ = 141280896. Its totient is φ = 33371520.

The previous prime is 68969783. The next prime is 68969809. The reversal of 68969792 is 29796986.

It is a congruent number.

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, 15398 + ... + 19365.

Almost surely, 268969792 is an apocalyptic number.

68969792 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

68969792 is an abundant number, since it is smaller than the sum of its proper divisors (72311104).

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

68969792 is a wasteful number, since it uses less digits than its factorization.

68969792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34806 (or 34796 counting only the distinct ones).

The product of its digits is 2939328, while the sum is 56.

The square root of 68969792 is about 8304.8053559370. The cubic root of 68969792 is about 410.0967291108.

The spelling of 68969792 in words is "sixty-eight million, nine hundred sixty-nine thousand, seven hundred ninety-two".

Divisors: 1 2 4 8 16 31 32 62 64 124 248 496 992 1984 34763 69526 139052 278104 556208 1077653 1112416 2155306 2224832 4310612 8621224 17242448 34484896 68969792