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68732156 = 22171010767
BaseRepresentation
bin1000001100011…
…00010011111100
311210022221210102
410012030103330
5120043412111
610453100232
71463133203
oct406142374
9153287712
1068732156
1135885539
121b027678
131131671c
1491b223a
15607a13b
hex418c4fc

68732156 has 12 divisors (see below), whose sum is σ = 127356768. Its totient is φ = 32344512.

The previous prime is 68732141. The next prime is 68732159. The reversal of 68732156 is 65123786.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68732159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 505316 + ... + 505451.

It is an arithmetic number, because the mean of its divisors is an integer number (10613064).

Almost surely, 268732156 is an apocalyptic number.

It is an amenable number.

68732156 is a deficient number, since it is larger than the sum of its proper divisors (58624612).

68732156 is a wasteful number, since it uses less digits than its factorization.

68732156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010788 (or 1010786 counting only the distinct ones).

The product of its digits is 60480, while the sum is 38.

The square root of 68732156 is about 8290.4858723720. The cubic root of 68732156 is about 409.6251898850.

The spelling of 68732156 in words is "sixty-eight million, seven hundred thirty-two thousand, one hundred fifty-six".

Divisors: 1 2 4 17 34 68 1010767 2021534 4043068 17183039 34366078 68732156