Search a number
-
+
115856680 = 23519152443
BaseRepresentation
bin1101110011111…
…01010100101000
322002000010111011
412321331110220
5214124403210
615255113304
72604523402
oct671752450
9262003434
10115856680
115a441925
1232972834
131b006064
141155bb72
15a287d8a
hex6e7d528

115856680 has 32 divisors (see below), whose sum is σ = 274399200. Its totient is φ = 43903296.

The previous prime is 115856677. The next prime is 115856701. The reversal of 115856680 is 86658511.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75462 + ... + 76981.

It is an arithmetic number, because the mean of its divisors is an integer number (8574975).

Almost surely, 2115856680 is an apocalyptic number.

115856680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115856680 is an abundant number, since it is smaller than the sum of its proper divisors (158542520).

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

115856680 is a wasteful number, since it uses less digits than its factorization.

115856680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152473 (or 152469 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 40.

The square root of 115856680 is about 10763.6740939142. The cubic root of 115856680 is about 487.4989594543.

The spelling of 115856680 in words is "one hundred fifteen million, eight hundred fifty-six thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 19 20 38 40 76 95 152 190 380 760 152443 304886 609772 762215 1219544 1524430 2896417 3048860 5792834 6097720 11585668 14482085 23171336 28964170 57928340 115856680