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68775152 = 2423186889
BaseRepresentation
bin1000001100101…
…10110011110000
311210102010202212
410012112303300
5120101301102
610454031252
71463402435
oct406266360
9153363685
1068775152
1135904876
121b048528
1311330174
1491c3b8c
156087c52
hex4196cf0

68775152 has 20 divisors (see below), whose sum is σ = 139046160. Its totient is φ = 32892288.

The previous prime is 68775043. The next prime is 68775169. The reversal of 68775152 is 25157786.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93077 + ... + 93812.

It is an arithmetic number, because the mean of its divisors is an integer number (6952308).

Almost surely, 268775152 is an apocalyptic number.

It is an amenable number.

68775152 is an abundant number, since it is smaller than the sum of its proper divisors (70271008).

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

68775152 is a wasteful number, since it uses less digits than its factorization.

68775152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186920 (or 186914 counting only the distinct ones).

The product of its digits is 117600, while the sum is 41.

The square root of 68775152 is about 8293.0785598594. The cubic root of 68775152 is about 409.7105869513.

The spelling of 68775152 in words is "sixty-eight million, seven hundred seventy-five thousand, one hundred fifty-two".

Divisors: 1 2 4 8 16 23 46 92 184 368 186889 373778 747556 1495112 2990224 4298447 8596894 17193788 34387576 68775152