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68256070 = 2513215167
BaseRepresentation
bin1000001000110…
…00000101000110
311202102202201121
410010120011012
5114433143240
610434544154
71456111201
oct404300506
9152382647
1068256070
113558a883
121aa3805a
13111aab0c
1490ca938
155ed404a
hex4118146

68256070 has 16 divisors (see below), whose sum is σ = 122977728. Its totient is φ = 27276480.

The previous prime is 68256059. The next prime is 68256107. The reversal of 68256070 is 7065286.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10627 + ... + 15793.

It is an arithmetic number, because the mean of its divisors is an integer number (7686108).

Almost surely, 268256070 is an apocalyptic number.

68256070 is a deficient number, since it is larger than the sum of its proper divisors (54721658).

68256070 is a wasteful number, since it uses less digits than its factorization.

68256070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6495.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 68256070 is about 8261.7231858735. The cubic root of 68256070 is about 408.6772161677.

The spelling of 68256070 in words is "sixty-eight million, two hundred fifty-six thousand, seventy".

Divisors: 1 2 5 10 1321 2642 5167 6605 10334 13210 25835 51670 6825607 13651214 34128035 68256070