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313051031013 = 3725159391203
BaseRepresentation
bin1001000111000110100…
…10111010010111100101
31002221001001202002121010
410203203102322113211
520112112030443023
6355451430012433
731421460600420
oct4434322722745
91087031662533
10313051031013
11110845167046
12508081a7119
132369c95a076
141121a5929b7
158223341093
hex48e34ba5e5

313051031013 has 16 divisors (see below), whose sum is σ = 478930669056. Its totient is φ = 178173606000.

The previous prime is 313051031011. The next prime is 313051031023. The reversal of 313051031013 is 310130150313.

It is not a de Polignac number, because 313051031013 - 21 = 313051031011 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313051031011) 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, 29690331 + ... + 29700872.

It is an arithmetic number, because the mean of its divisors is an integer number (29933166816).

Almost surely, 2313051031013 is an apocalyptic number.

It is an amenable number.

313051031013 is a deficient number, since it is larger than the sum of its proper divisors (165879638043).

313051031013 is a wasteful number, since it uses less digits than its factorization.

313051031013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59391464.

The product of its (nonzero) digits is 405, while the sum is 21.

Adding to 313051031013 its reverse (310130150313), we get a palindrome (623181181326).

The spelling of 313051031013 in words is "three hundred thirteen billion, fifty-one million, thirty-one thousand, thirteen".

Divisors: 1 3 7 21 251 753 1757 5271 59391203 178173609 415738421 1247215263 14907191953 44721575859 104350343671 313051031013