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113124311 = 719315727
BaseRepresentation
bin1101011111000…
…10001111010111
321212212022101022
412233202033113
5212424434221
615120351355
72542353326
oct657421727
9255768338
10113124311
1158945a73
1231a7555b
131a58a481
141104a0bd
159de84ab
hex6be23d7

113124311 has 4 divisors (see below), whose sum is σ = 113147232. Its totient is φ = 113101392.

The previous prime is 113124293. The next prime is 113124337. The reversal of 113124311 is 113421311.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-113124311 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 113124311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113124391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 671 + ... + 15056.

It is an arithmetic number, because the mean of its divisors is an integer number (28286808).

Almost surely, 2113124311 is an apocalyptic number.

113124311 is a deficient number, since it is larger than the sum of its proper divisors (22921).

113124311 is an equidigital number, since it uses as much as digits as its factorization.

113124311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22920.

The product of its digits is 72, while the sum is 17.

The square root of 113124311 is about 10635.9913031179. The cubic root of 113124311 is about 483.6360316598.

Adding to 113124311 its reverse (113421311), we get a palindrome (226545622).

The spelling of 113124311 in words is "one hundred thirteen million, one hundred twenty-four thousand, three hundred eleven".

Divisors: 1 7193 15727 113124311