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68945392 = 2415128537
BaseRepresentation
bin1000001110000…
…00010111110000
311210201210022001
410013000113300
5120122223032
610501423344
71465011655
oct407002760
9153653261
1068945392
1135a1076a
121b10ab54
131138c7b9
149229c2c
1560bd3e7
hex41c05f0

68945392 has 20 divisors (see below), whose sum is σ = 134471056. Its totient is φ = 34243200.

The previous prime is 68945377. The next prime is 68945411. The reversal of 68945392 is 29354986.

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, 11853 + ... + 16684.

Almost surely, 268945392 is an apocalyptic number.

It is an amenable number.

68945392 is a deficient number, since it is larger than the sum of its proper divisors (65525664).

68945392 is a wasteful number, since it uses less digits than its factorization.

68945392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28696 (or 28690 counting only the distinct ones).

The product of its digits is 466560, while the sum is 46.

The square root of 68945392 is about 8303.3361969753. The cubic root of 68945392 is about 410.0483623300.

The spelling of 68945392 in words is "sixty-eight million, nine hundred forty-five thousand, three hundred ninety-two".

Divisors: 1 2 4 8 16 151 302 604 1208 2416 28537 57074 114148 228296 456592 4309087 8618174 17236348 34472696 68945392