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105131030400031 = 19322031375917971
BaseRepresentation
bin10111111001110110111001…
…101110001100110000011111
3111210020102120021020122102211
4113321312321232030300133
5102234431322240300111
61011332310103301251
731100315640005446
oct2771667156146037
9453212507218384
10105131030400031
113055290199a639
12b95b12144a827
134687a76703c9c
141bd6524845d5d
15c24a7553d521
hex5f9db9b8cc1f

105131030400031 has 16 divisors (see below), whose sum is σ = 105737287198720. Its totient is φ = 104525421027840.

The previous prime is 105131030399987. The next prime is 105131030400043. The reversal of 105131030400031 is 130004030131501.

It is a cyclic number.

It is not a de Polignac number, because 105131030400031 - 217 = 105131030268959 is a prime.

It is a super-2 number, since 2×1051310304000312 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 105131030399975 and 105131030400011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105131030400131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5850028876 + ... + 5850046846.

It is an arithmetic number, because the mean of its divisors is an integer number (6608580449920).

Almost surely, 2105131030400031 is an apocalyptic number.

105131030400031 is a deficient number, since it is larger than the sum of its proper divisors (606256798689).

105131030400031 is a wasteful number, since it uses less digits than its factorization.

105131030400031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34126.

The product of its (nonzero) digits is 540, while the sum is 22.

Adding to 105131030400031 its reverse (130004030131501), we get a palindrome (235135060531532).

The spelling of 105131030400031 in words is "one hundred five trillion, one hundred thirty-one billion, thirty million, four hundred thousand, thirty-one".

Divisors: 1 193 2203 13759 17971 425179 2655487 3468403 30311077 39590113 247262989 5850037861 7640891809 47721756877 544720364767 105131030400031