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3131133023 = 21149130223
BaseRepresentation
bin1011101010100001…
…0100110001011111
322002012210001000202
42322220110301133
522403032224043
61234411014115
7140410122464
oct27250246137
98065701022
103131133023
111367496647
1273473a33b
133ab908945
14219bbd66b
15134d481b8
hexbaa14c5f

3131133023 has 8 divisors (see below), whose sum is σ = 3152484096. Its totient is φ = 3109843800.

The previous prime is 3131133013. The next prime is 3131133067. The reversal of 3131133023 is 3203311313.

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 3131133023 - 24 = 3131133007 is a prime.

It is a super-2 number, since 2×31311330232 = 19607988015442237058, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3131132986 and 3131133004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3131133013) 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 7 ways as a sum of consecutive naturals, for example, 88490 + ... + 118712.

It is an arithmetic number, because the mean of its divisors is an integer number (394060512).

Almost surely, 23131133023 is an apocalyptic number.

3131133023 is a deficient number, since it is larger than the sum of its proper divisors (21351073).

3131133023 is a wasteful number, since it uses less digits than its factorization.

3131133023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30925.

The product of its (nonzero) digits is 486, while the sum is 20.

The square root of 3131133023 is about 55956.5279748485. The cubic root of 3131133023 is about 1462.9646743970.

Adding to 3131133023 its reverse (3203311313), we get a palindrome (6334444336).

The spelling of 3131133023 in words is "three billion, one hundred thirty-one million, one hundred thirty-three thousand, twenty-three".

Divisors: 1 211 491 30223 103601 6377053 14839493 3131133023