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113415031 = 645117581
BaseRepresentation
bin1101100001010…
…01001101110111
321220102002011201
412300221031313
5213013240111
615130513331
72545004032
oct660511567
9256362151
10113415031
1159024434
1231b95847
131a65c8b2
14110c4019
159e546c1
hex6c29377

113415031 has 4 divisors (see below), whose sum is σ = 113439064. Its totient is φ = 113391000.

The previous prime is 113415023. The next prime is 113415053. The reversal of 113415031 is 130514311.

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

It is a cyclic number.

It is not a de Polignac number, because 113415031 - 23 = 113415023 is a prime.

It is a super-2 number, since 2×1134150312 = 25725938513461922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113415131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2340 + ... + 15241.

It is an arithmetic number, because the mean of its divisors is an integer number (28359766).

Almost surely, 2113415031 is an apocalyptic number.

113415031 is a deficient number, since it is larger than the sum of its proper divisors (24033).

113415031 is an equidigital number, since it uses as much as digits as its factorization.

113415031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24032.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 113415031 is about 10649.6493369500. The cubic root of 113415031 is about 484.0499786174.

Adding to 113415031 its reverse (130514311), we get a palindrome (243929342).

The spelling of 113415031 in words is "one hundred thirteen million, four hundred fifteen thousand, thirty-one".

Divisors: 1 6451 17581 113415031