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68610357 = 3223331451
BaseRepresentation
bin1000001011011…
…10100100110101
311210002202201100
410011232210311
5120031012412
610450320313
71462115124
oct405564465
9153082640
1068610357
1135801a82
121ab89099
13112a315a
14917dabb
156053edc
hex416e935

68610357 has 12 divisors (see below), whose sum is σ = 103413024. Its totient is φ = 43751400.

The previous prime is 68610319. The next prime is 68610359. The reversal of 68610357 is 75301686.

68610357 is a `hidden beast` number, since 6 + 8 + 610 + 35 + 7 = 666.

It is not a de Polignac number, because 68610357 - 27 = 68610229 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68610359) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 165519 + ... + 165932.

It is an arithmetic number, because the mean of its divisors is an integer number (8617752).

Almost surely, 268610357 is an apocalyptic number.

It is an amenable number.

68610357 is a deficient number, since it is larger than the sum of its proper divisors (34802667).

68610357 is a wasteful number, since it uses less digits than its factorization.

68610357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331480 (or 331477 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 68610357 is about 8283.1369057864. The cubic root of 68610357 is about 409.3830837088.

The spelling of 68610357 in words is "sixty-eight million, six hundred ten thousand, three hundred fifty-seven".

Divisors: 1 3 9 23 69 207 331451 994353 2983059 7623373 22870119 68610357