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86660652 = 223134312919
BaseRepresentation
bin1010010101001…
…01011000101100
320001001211001210
411022211120230
5134141120102
612333234420
72101413651
oct512453054
9201054053
1086660652
1144a10481
1225032a10
1314c52cc0
14b71bc28
15791c36c
hex52a562c

86660652 has 48 divisors (see below), whose sum is σ = 222844160. Its totient is φ = 26042688.

The previous prime is 86660647. The next prime is 86660659. The reversal of 86660652 is 25606668.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 86660652.

It is not an unprimeable number, because it can be changed into a prime (86660659) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 249 + ... + 13167.

Almost surely, 286660652 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 86660652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111422080).

86660652 is an abundant number, since it is smaller than the sum of its proper divisors (136183508).

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

86660652 is a wasteful number, since it uses less digits than its factorization.

86660652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12982 (or 12980 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 86660652 is about 9309.1703174880. The cubic root of 86660652 is about 442.5278938017.

The spelling of 86660652 in words is "eighty-six million, six hundred sixty thousand, six hundred fifty-two".

Divisors: 1 2 3 4 6 12 13 26 39 43 52 78 86 129 156 172 258 516 559 1118 1677 2236 3354 6708 12919 25838 38757 51676 77514 155028 167947 335894 503841 555517 671788 1007682 1111034 1666551 2015364 2222068 3333102 6666204 7221721 14443442 21665163 28886884 43330326 86660652