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113031331 = 7148710859
BaseRepresentation
bin1101011110010…
…11100010100011
321212200120211121
412233023202203
5212414000311
615114353111
72541515260
oct657134243
9255616747
10113031331
1158892126
1231a2b797
131a55705a
1411024267
159dcab71
hex6bcb8a3

113031331 has 8 divisors (see below), whose sum is σ = 129277440. Its totient is φ = 96809928.

The previous prime is 113031319. The next prime is 113031349. The reversal of 113031331 is 133130311.

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

It is a cyclic number.

It is not a de Polignac number, because 113031331 - 211 = 113029283 is a prime.

It is a super-2 number, since 2×1130313312 = 25552163575263122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113031371) 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, 4980 + ... + 15838.

It is an arithmetic number, because the mean of its divisors is an integer number (16159680).

Almost surely, 2113031331 is an apocalyptic number.

113031331 is a deficient number, since it is larger than the sum of its proper divisors (16246109).

113031331 is a wasteful number, since it uses less digits than its factorization.

113031331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12353.

The product of its (nonzero) digits is 81, while the sum is 16.

The square root of 113031331 is about 10631.6193968746. The cubic root of 113031331 is about 483.5034907299.

Adding to 113031331 its reverse (133130311), we get a palindrome (246161642).

The spelling of 113031331 in words is "one hundred thirteen million, thirty-one thousand, three hundred thirty-one".

Divisors: 1 7 1487 10409 10859 76013 16147333 113031331