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113300031 = 3133778517
BaseRepresentation
bin1101100000011…
…01001000111111
321220012020102110
412300031020333
5213001100111
615124225103
72544014535
oct660151077
9256166373
10113300031
1158a55a99
1231b3b193
131a61c450
1411094155
159e305a6
hex6c0d23f

113300031 has 16 divisors (see below), whose sum is σ = 167086304. Its totient is φ = 67837824.

The previous prime is 113300029. The next prime is 113300069. The reversal of 113300031 is 130003311.

It is not a de Polignac number, because 113300031 - 21 = 113300029 is a prime.

It is a super-2 number, since 2×1133000312 = 25673794049201922, 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 (113300731) 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, 37816 + ... + 40701.

It is an arithmetic number, because the mean of its divisors is an integer number (10442894).

Almost surely, 2113300031 is an apocalyptic number.

113300031 is a deficient number, since it is larger than the sum of its proper divisors (53786273).

113300031 is a wasteful number, since it uses less digits than its factorization.

113300031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78570.

The product of its (nonzero) digits is 27, while the sum is 12.

The square root of 113300031 is about 10644.2487287737. The cubic root of 113300031 is about 483.8863184387.

Adding to 113300031 its reverse (130003311), we get a palindrome (243303342).

The spelling of 113300031 in words is "one hundred thirteen million, three hundred thousand, thirty-one".

Divisors: 1 3 13 37 39 111 481 1443 78517 235551 1020721 2905129 3062163 8715387 37766677 113300031