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68055128 = 2333725243
BaseRepresentation
bin1000000111001…
…11000001011000
311202001120002022
410003213001120
5114410231003
610430354012
71454313311
oct403470130
9152046068
1068055128
1135462909
121a95b908
131113a50b
149077608
155e94738
hex40e7058

68055128 has 16 divisors (see below), whose sum is σ = 127987080. Its totient is φ = 33925248.

The previous prime is 68055089. The next prime is 68055139. The reversal of 68055128 is 82155086.

It is a happy number.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

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, 9926 + ... + 15317.

Almost surely, 268055128 is an apocalyptic number.

It is an amenable number.

68055128 is a deficient number, since it is larger than the sum of its proper divisors (59931952).

68055128 is a wasteful number, since it uses less digits than its factorization.

68055128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25586 (or 25582 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 35.

The square root of 68055128 is about 8249.5532000224. The cubic root of 68055128 is about 408.2757811247.

The spelling of 68055128 in words is "sixty-eight million, fifty-five thousand, one hundred twenty-eight".

Divisors: 1 2 4 8 337 674 1348 2696 25243 50486 100972 201944 8506891 17013782 34027564 68055128