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113884991 = 1117957839
BaseRepresentation
bin1101100100110…
…11111100111111
321221021221211122
412302123330333
5213123304431
615144541155
72552002133
oct662337477
9257257748
10113884991
1159315530
12321817bb
131a79578c
14111a73c3
159ee8a7b
hex6c9bf3f

113884991 has 8 divisors (see below), whose sum is σ = 124934400. Its totient is φ = 102951640.

The previous prime is 113884963. The next prime is 113884999. The reversal of 113884991 is 199488311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 113884991 - 226 = 46776127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113884999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26951 + ... + 30888.

It is an arithmetic number, because the mean of its divisors is an integer number (15616800).

Almost surely, 2113884991 is an apocalyptic number.

113884991 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

113884991 is a deficient number, since it is larger than the sum of its proper divisors (11049409).

113884991 is a wasteful number, since it uses less digits than its factorization.

113884991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58029.

The product of its digits is 62208, while the sum is 44.

The square root of 113884991 is about 10671.6911031008. The cubic root of 113884991 is about 484.7176462601.

The spelling of 113884991 in words is "one hundred thirteen million, eight hundred eighty-four thousand, nine hundred ninety-one".

Divisors: 1 11 179 1969 57839 636229 10353181 113884991