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68606256 = 2433534049
BaseRepresentation
bin1000001011011…
…01100100110000
311210002120002110
410011231210300
5120030400011
610450245320
71462100145
oct405554460
9153076073
1068606256
11357a9994
121ab86840
13112a1324
14917c3cc
156052ba6
hex416d930

68606256 has 40 divisors (see below), whose sum is σ = 177778800. Its totient is φ = 22798336.

The previous prime is 68606249. The next prime is 68606269. The reversal of 68606256 is 65260686.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14920 + ... + 18968.

It is an arithmetic number, because the mean of its divisors is an integer number (4444470).

Almost surely, 268606256 is an apocalyptic number.

It is an amenable number.

68606256 is an abundant number, since it is smaller than the sum of its proper divisors (109172544).

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

68606256 is a wasteful number, since it uses less digits than its factorization.

68606256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4413 (or 4407 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 68606256 is about 8282.8893509451. The cubic root of 68606256 is about 409.3749269545.

The spelling of 68606256 in words is "sixty-eight million, six hundred six thousand, two hundred fifty-six".

Divisors: 1 2 3 4 6 8 12 16 24 48 353 706 1059 1412 2118 2824 4049 4236 5648 8098 8472 12147 16196 16944 24294 32392 48588 64784 97176 194352 1429297 2858594 4287891 5717188 8575782 11434376 17151564 22868752 34303128 68606256