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115780868 = 22718772203
BaseRepresentation
bin1101110011010…
…10110100000100
322001212021111022
412321222310010
5214114441433
615253330312
72604056360
oct671526404
9261767438
10115780868
115a39a975
1232936998
131acaa6b8
141153c2a0
15a270698
hex6e6ad04

115780868 has 24 divisors (see below), whose sum is σ = 231790272. Its totient is φ = 49571424.

The previous prime is 115780859. The next prime is 115780883. The reversal of 115780868 is 868087511.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51455 + ... + 53657.

It is an arithmetic number, because the mean of its divisors is an integer number (9657928).

Almost surely, 2115780868 is an apocalyptic number.

It is an amenable number.

115780868 is an abundant number, since it is smaller than the sum of its proper divisors (116009404).

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

115780868 is a wasteful number, since it uses less digits than its factorization.

115780868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4091 (or 4089 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 44.

The square root of 115780868 is about 10760.1518576645. The cubic root of 115780868 is about 487.3926029473.

The spelling of 115780868 in words is "one hundred fifteen million, seven hundred eighty thousand, eight hundred sixty-eight".

Divisors: 1 2 4 7 14 28 1877 2203 3754 4406 7508 8812 13139 15421 26278 30842 52556 61684 4135031 8270062 16540124 28945217 57890434 115780868