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113983881 = 31130711251
BaseRepresentation
bin1101100101101…
…00000110001001
321221110222111020
412302310012021
5213134441011
615151023053
72552563344
oct662640611
9257428436
10113983881
1159382860
123220aa89
131a7cb7ab
14111d145b
15a018006
hex6cb4189

113983881 has 16 divisors (see below), whose sum is σ = 166349568. Its totient is φ = 68850000.

The previous prime is 113983823. The next prime is 113983889. The reversal of 113983881 is 188389311.

It is not a de Polignac number, because 113983881 - 213 = 113975689 is a prime.

It is a super-2 number, since 2×1139838812 = 25984650255644322, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (113983889) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4506 + ... + 15756.

It is an arithmetic number, because the mean of its divisors is an integer number (10396848).

Almost surely, 2113983881 is an apocalyptic number.

113983881 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

113983881 is a deficient number, since it is larger than the sum of its proper divisors (52365687).

113983881 is a wasteful number, since it uses less digits than its factorization.

113983881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11572.

The product of its digits is 41472, while the sum is 42.

The square root of 113983881 is about 10676.3233840119. The cubic root of 113983881 is about 484.8579043110.

The spelling of 113983881 in words is "one hundred thirteen million, nine hundred eighty-three thousand, eight hundred eighty-one".

Divisors: 1 3 11 33 307 921 3377 10131 11251 33753 123761 371283 3454057 10362171 37994627 113983881