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113688906 = 23177710663
BaseRepresentation
bin1101100011011…
…00000101001010
321220220222212020
412301230011022
5213101021111
615140425310
72550224352
oct661540512
9256828766
10113688906
11591a1181
12320a8236
131a727456
1411155b62
159eaa906
hex6c6c14a

113688906 has 16 divisors (see below), whose sum is σ = 227527104. Its totient is φ = 37871424.

The previous prime is 113688889. The next prime is 113688917. The reversal of 113688906 is 609886311.

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, 5331 + ... + 15993.

It is an arithmetic number, because the mean of its divisors is an integer number (14220444).

Almost surely, 2113688906 is an apocalyptic number.

It is a pronic number, being equal to 10662×10663.

113688906 is an abundant number, since it is smaller than the sum of its proper divisors (113838198).

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

113688906 is a wasteful number, since it uses less digits than its factorization.

113688906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12445.

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 113688906 is about 10662.4999882767. The cubic root of 113688906 is about 484.4392939199.

The spelling of 113688906 in words is "one hundred thirteen million, six hundred eighty-eight thousand, nine hundred six".

Divisors: 1 2 3 6 1777 3554 5331 10662 10663 21326 31989 63978 18948151 37896302 56844453 113688906