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65068688 = 2431712829
BaseRepresentation
bin1111100000110…
…1111010010000
311112102211110102
43320031322100
5113124144223
610242351532
71420034426
oct370157220
9145384412
1065068688
1133803083
121995b5a8
13106330a9
1488db116
155aa4928
hex3e0de90

65068688 has 20 divisors (see below), whose sum is σ = 126478140. Its totient is φ = 32429184.

The previous prime is 65068669. The next prime is 65068691. The reversal of 65068688 is 88686056.

65068688 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 24720784 + 40347904 = 4972^2 + 6352^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1343 + ... + 11486.

It is an arithmetic number, because the mean of its divisors is an integer number (6323907).

Almost surely, 265068688 is an apocalyptic number.

It is an amenable number.

65068688 is a deficient number, since it is larger than the sum of its proper divisors (61409452).

65068688 is a wasteful number, since it uses less digits than its factorization.

65068688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13154 (or 13148 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 47.

The square root of 65068688 is about 8066.5164724310. The cubic root of 65068688 is about 402.2141545185.

It can be divided in two parts, 65068 and 688, that added together give a palindrome (65756).

The spelling of 65068688 in words is "sixty-five million, sixty-eight thousand, six hundred eighty-eight".

Divisors: 1 2 4 8 16 317 634 1268 2536 5072 12829 25658 51316 102632 205264 4066793 8133586 16267172 32534344 65068688