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113815660 = 2257812969
BaseRepresentation
bin1101100100010…
…11000001101100
321221011102201211
412302023001230
5213114100120
615143244204
72551263040
oct662130154
9257142654
10113815660
1159278432
1232149664
131a77005a
141118a020
159ed325a
hex6c8b06c

113815660 has 24 divisors (see below), whose sum is σ = 273157920. Its totient is φ = 39022464.

The previous prime is 113815657. The next prime is 113815679. The reversal of 113815660 is 66518311.

It is a super-2 number, since 2×1138156602 = 25908008922471200, which contains 22 as substring.

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, 406345 + ... + 406624.

It is an arithmetic number, because the mean of its divisors is an integer number (11381580).

Almost surely, 2113815660 is an apocalyptic number.

113815660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113815660 is an abundant number, since it is smaller than the sum of its proper divisors (159342260).

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

113815660 is a wasteful number, since it uses less digits than its factorization.

113815660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 812985 (or 812983 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 113815660 is about 10668.4422480510. The cubic root of 113815660 is about 484.6192640218.

The spelling of 113815660 in words is "one hundred thirteen million, eight hundred fifteen thousand, six hundred sixty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 812969 1625938 3251876 4064845 5690783 8129690 11381566 16259380 22763132 28453915 56907830 113815660