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68959572 = 22311539857
BaseRepresentation
bin1000001110000…
…11110101010100
311210202111202020
410013003311110
5120123201242
610502013140
71465101213
oct407036524
9153674666
1068959572
1135a20390
121b1171b0
13113960a6
14923107a
1560c26ec
hex41c3d54

68959572 has 48 divisors (see below), whose sum is σ = 178863552. Its totient is φ = 20500480.

The previous prime is 68959567. The next prime is 68959643. The reversal of 68959572 is 27595986.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2068 + ... + 11924.

It is an arithmetic number, because the mean of its divisors is an integer number (3726324).

Almost surely, 268959572 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68959572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89431776).

68959572 is an abundant number, since it is smaller than the sum of its proper divisors (109903980).

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

68959572 is a wasteful number, since it uses less digits than its factorization.

68959572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9928 (or 9926 counting only the distinct ones).

The product of its digits is 1360800, while the sum is 51.

The square root of 68959572 is about 8304.1900267275. The cubic root of 68959572 is about 410.0764719543.

The spelling of 68959572 in words is "sixty-eight million, nine hundred fifty-nine thousand, five hundred seventy-two".

Divisors: 1 2 3 4 6 11 12 22 33 44 53 66 106 132 159 212 318 583 636 1166 1749 2332 3498 6996 9857 19714 29571 39428 59142 108427 118284 216854 325281 433708 522421 650562 1044842 1301124 1567263 2089684 3134526 5746631 6269052 11493262 17239893 22986524 34479786 68959572