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68656008 = 23325711131
BaseRepresentation
bin1000001011110…
…01101110001000
311210012002100010
410011321232020
5120033443013
610451311520
71462365201
oct405715610
9153162303
1068656008
1135833303
121abab5a0
13112bab75
1491925a8
1560627c3
hex4179b88

68656008 has 32 divisors (see below), whose sum is σ = 172323360. Its totient is φ = 22794240.

The previous prime is 68655991. The next prime is 68656009. The reversal of 68656008 is 80065686.

It is not an unprimeable number, because it can be changed into a prime (68656009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 603 + ... + 11733.

It is an arithmetic number, because the mean of its divisors is an integer number (5385105).

Almost surely, 268656008 is an apocalyptic number.

It is an amenable number.

68656008 is an abundant number, since it is smaller than the sum of its proper divisors (103667352).

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

68656008 is a wasteful number, since it uses less digits than its factorization.

68656008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11397 (or 11393 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 68656008 is about 8285.8921064663. The cubic root of 68656008 is about 409.4738601093.

The spelling of 68656008 in words is "sixty-eight million, six hundred fifty-six thousand, eight".

Divisors: 1 2 3 4 6 8 12 24 257 514 771 1028 1542 2056 3084 6168 11131 22262 33393 44524 66786 89048 133572 267144 2860667 5721334 8582001 11442668 17164002 22885336 34328004 68656008