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68386508 = 2237795849
BaseRepresentation
bin1000001001101…
…11111011001100
311202200101122122
410010313323030
5120001332013
610441432112
71460163401
oct404677314
9152611578
1068386508
1135669883
121aa9b638
13112252b8
1491222a8
15600ca08
hex4137ecc

68386508 has 24 divisors (see below), whose sum is σ = 124488000. Its totient is φ = 32842368.

The previous prime is 68386481. The next prime is 68386517. The reversal of 68386508 is 80568386.

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, 8768 + ... + 14616.

It is an arithmetic number, because the mean of its divisors is an integer number (5187000).

Almost surely, 268386508 is an apocalyptic number.

It is an amenable number.

68386508 is a deficient number, since it is larger than the sum of its proper divisors (56101492).

68386508 is a wasteful number, since it uses less digits than its factorization.

68386508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5969 (or 5967 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 44.

The square root of 68386508 is about 8269.6135338962. The cubic root of 68386508 is about 408.9373791977.

The spelling of 68386508 in words is "sixty-eight million, three hundred eighty-six thousand, five hundred eight".

Divisors: 1 2 4 37 74 79 148 158 316 2923 5846 5849 11692 11698 23396 216413 432826 462071 865652 924142 1848284 17096627 34193254 68386508