Search a number
-
+
115139260 = 22583139499
BaseRepresentation
bin1101101110011…
…10001010111100
322000122200101001
412313032022330
5213433424020
615231500044
72565444655
oct667161274
9260580331
10115139260
1159aa1915
1232687624
131ab14652
141141252c
15a19550a
hex6dce2bc

115139260 has 48 divisors (see below), whose sum is σ = 246960000. Its totient is φ = 45082944.

The previous prime is 115139231. The next prime is 115139273. The reversal of 115139260 is 62931511.

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, 230491 + ... + 230989.

It is an arithmetic number, because the mean of its divisors is an integer number (5145000).

Almost surely, 2115139260 is an apocalyptic number.

115139260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115139260 is an abundant number, since it is smaller than the sum of its proper divisors (131820740).

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

115139260 is a wasteful number, since it uses less digits than its factorization.

115139260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 730 (or 728 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 115139260 is about 10730.2963612381. The cubic root of 115139260 is about 486.4906277253.

The spelling of 115139260 in words is "one hundred fifteen million, one hundred thirty-nine thousand, two hundred sixty".

Divisors: 1 2 4 5 10 20 83 139 166 278 332 415 499 556 695 830 998 1390 1660 1996 2495 2780 4990 9980 11537 23074 41417 46148 57685 69361 82834 115370 138722 165668 207085 230740 277444 346805 414170 693610 828340 1387220 5756963 11513926 23027852 28784815 57569630 115139260