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68683604 = 22111791823
BaseRepresentation
bin1000001100000…
…00011101010100
311210020111012012
410012000131110
5120040333404
610452043352
71462541513
oct406003524
9153214165
1068683604
1135852010
121b003558
13112ca5b2
14919c67a
15606aa6e
hex4180754

68683604 has 24 divisors (see below), whose sum is σ = 138837888. Its totient is φ = 29383040.

The previous prime is 68683597. The next prime is 68683607. The reversal of 68683604 is 40638686.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68683607) 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, 45164 + ... + 46659.

It is an arithmetic number, because the mean of its divisors is an integer number (5784912).

Almost surely, 268683604 is an apocalyptic number.

It is an amenable number.

68683604 is an abundant number, since it is smaller than the sum of its proper divisors (70154284).

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

68683604 is a wasteful number, since it uses less digits than its factorization.

68683604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91855 (or 91853 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 41.

The square root of 68683604 is about 8287.5571792899. The cubic root of 68683604 is about 409.5287148717.

The spelling of 68683604 in words is "sixty-eight million, six hundred eighty-three thousand, six hundred four".

Divisors: 1 2 4 11 17 22 34 44 68 187 374 748 91823 183646 367292 1010053 1560991 2020106 3121982 4040212 6243964 17170901 34341802 68683604