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113611660 = 22512744729
BaseRepresentation
bin1101100010110…
…01001110001100
321220210001220021
412301121032030
5213041033120
615135031524
72546453221
oct661311614
9256701807
10113611660
1159149138
123206b5a4
131a6cb246
1411135948
159e92aaa
hex6c5938c

113611660 has 24 divisors (see below), whose sum is σ = 240468480. Its totient is φ = 45085824.

The previous prime is 113611627. The next prime is 113611679. The reversal of 113611660 is 66116311.

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, 19825 + ... + 24904.

It is an arithmetic number, because the mean of its divisors is an integer number (10019520).

Almost surely, 2113611660 is an apocalyptic number.

113611660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113611660 is an abundant number, since it is smaller than the sum of its proper divisors (126856820).

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

113611660 is a wasteful number, since it uses less digits than its factorization.

113611660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44865 (or 44863 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 113611660 is about 10658.8770515472. The cubic root of 113611660 is about 484.3295515318.

Adding to 113611660 its reverse (66116311), we get a palindrome (179727971).

The spelling of 113611660 in words is "one hundred thirteen million, six hundred eleven thousand, six hundred sixty".

Divisors: 1 2 4 5 10 20 127 254 508 635 1270 2540 44729 89458 178916 223645 447290 894580 5680583 11361166 22722332 28402915 56805830 113611660