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113324431 = 11172920897
BaseRepresentation
bin1101100000100…
…11000110001111
321220020110220011
412300103012033
5213002340211
615124534051
72544145633
oct660230617
9256213804
10113324431
1158a72360
1231b51327
131a62a59c
141109cdc3
159e37921
hex6c1318f

113324431 has 16 divisors (see below), whose sum is σ = 135419040. Its totient is φ = 93614080.

The previous prime is 113324401. The next prime is 113324503. The reversal of 113324431 is 134423311.

It is a cyclic number.

It is not a de Polignac number, because 113324431 - 223 = 104935823 is a prime.

It is a super-2 number, since 2×1133244312 = 25684853322947522, 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 (113324401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5026 + ... + 15871.

It is an arithmetic number, because the mean of its divisors is an integer number (8463690).

Almost surely, 2113324431 is an apocalyptic number.

113324431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

113324431 is a deficient number, since it is larger than the sum of its proper divisors (22094609).

113324431 is a wasteful number, since it uses less digits than its factorization.

113324431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20954.

The product of its digits is 864, while the sum is 22.

The square root of 113324431 is about 10645.3948259329. The cubic root of 113324431 is about 483.9210521118.

Adding to 113324431 its reverse (134423311), we get a palindrome (247747742).

The spelling of 113324431 in words is "one hundred thirteen million, three hundred twenty-four thousand, four hundred thirty-one".

Divisors: 1 11 17 29 187 319 493 5423 20897 229867 355249 606013 3907739 6666143 10302221 113324431