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113913291 = 361622477
BaseRepresentation
bin1101100101000…
…10110111001011
321221100101122210
412302202313023
5213130211131
615145320203
72552150502
oct662426713
9257311583
10113913291
1159334818
1232196063
131a7a561b
14111b3839
15a002146
hex6ca2dcb

113913291 has 8 divisors (see below), whose sum is σ = 154374544. Its totient is φ = 74697120.

The previous prime is 113913287. The next prime is 113913299. The reversal of 113913291 is 192319311.

It is a happy number.

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

It is not a de Polignac number, because 113913291 - 22 = 113913287 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113913299) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 311056 + ... + 311421.

It is an arithmetic number, because the mean of its divisors is an integer number (19296818).

Almost surely, 2113913291 is an apocalyptic number.

113913291 is a deficient number, since it is larger than the sum of its proper divisors (40461253).

113913291 is an equidigital number, since it uses as much as digits as its factorization.

113913291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 622541.

The product of its digits is 1458, while the sum is 30.

The square root of 113913291 is about 10673.0169586673. The cubic root of 113913291 is about 484.7577931170.

The spelling of 113913291 in words is "one hundred thirteen million, nine hundred thirteen thousand, two hundred ninety-one".

Divisors: 1 3 61 183 622477 1867431 37971097 113913291