Search a number
-
+
130866864 = 2435215233
BaseRepresentation
bin1111100110011…
…01111010110000
3100010020201120220
413303031322300
5232000214424
620552533040
73146231022
oct763157260
9303221526
10130866864
1167964237
12379b1180
132116021b
1413548012
15b750579
hex7ccdeb0

130866864 has 40 divisors (see below), whose sum is σ = 338786352. Its totient is φ = 43530240.

The previous prime is 130866863. The next prime is 130866893. The reversal of 130866864 is 468668031.

It is a happy number.

It is a super-2 number, since 2×1308668642 = 34252272186388992, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (130866863) 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, 22392 + ... + 27624.

Almost surely, 2130866864 is an apocalyptic number.

It is an amenable number.

130866864 is an abundant number, since it is smaller than the sum of its proper divisors (207919488).

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

130866864 is a wasteful number, since it uses less digits than its factorization.

130866864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5765 (or 5759 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 42.

The square root of 130866864 is about 11439.7055906173. The cubic root of 130866864 is about 507.7031973648.

The spelling of 130866864 in words is "one hundred thirty million, eight hundred sixty-six thousand, eight hundred sixty-four".

Divisors: 1 2 3 4 6 8 12 16 24 48 521 1042 1563 2084 3126 4168 5233 6252 8336 10466 12504 15699 20932 25008 31398 41864 62796 83728 125592 251184 2726393 5452786 8179179 10905572 16358358 21811144 32716716 43622288 65433432 130866864