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68660372 = 22116312473
BaseRepresentation
bin1000001011110…
…10110010010100
311210012022022202
410011322302110
5120034112442
610451344032
71462414004
oct405726224
9153168282
1068660372
1135836610
121abb2018
13112bcb51
149194004
156063c32
hex417ac94

68660372 has 24 divisors (see below), whose sum is σ = 131339712. Its totient is φ = 31147200.

The previous prime is 68660353. The next prime is 68660393. The reversal of 68660372 is 27306686.

It is a congruent number.

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, 26528 + ... + 29000.

It is an arithmetic number, because the mean of its divisors is an integer number (5472488).

Almost surely, 268660372 is an apocalyptic number.

It is an amenable number.

68660372 is a deficient number, since it is larger than the sum of its proper divisors (62679340).

68660372 is a wasteful number, since it uses less digits than its factorization.

68660372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3119 (or 3117 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 68660372 is about 8286.1554414578. The cubic root of 68660372 is about 409.4825357573.

The spelling of 68660372 in words is "sixty-eight million, six hundred sixty thousand, three hundred seventy-two".

Divisors: 1 2 4 11 22 44 631 1262 2473 2524 4946 6941 9892 13882 27203 27764 54406 108812 1560463 3120926 6241852 17165093 34330186 68660372