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5311019031 = 37970931607
BaseRepresentation
bin1001111001000111…
…11011100000010111
3111201010121201110120
410330203323200113
541334110102111
62235001323023
7245416626333
oct47443734027
914633551416
105311019031
112285a2822a
121042796473
13668417016
143855027c3
152113e0406
hex13c8fb817

5311019031 has 16 divisors (see below), whose sum is σ = 7181337600. Its totient is φ = 3490819488.

The previous prime is 5311018991. The next prime is 5311019083. The reversal of 5311019031 is 1309101135.

It is not a de Polignac number, because 5311019031 - 27 = 5311018903 is a prime.

It is a super-2 number, since 2×53110190312 = 56413846295288357922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5311018992 and 5311019010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5311019431) 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, 152230 + ... + 183836.

It is an arithmetic number, because the mean of its divisors is an integer number (448833600).

Almost surely, 25311019031 is an apocalyptic number.

5311019031 is a deficient number, since it is larger than the sum of its proper divisors (1870318569).

5311019031 is a wasteful number, since it uses less digits than its factorization.

5311019031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32398.

The product of its (nonzero) digits is 405, while the sum is 24.

The square root of 5311019031 is about 72876.7386139089. The cubic root of 5311019031 is about 1744.7208559430.

The spelling of 5311019031 in words is "five billion, three hundred eleven million, nineteen thousand, thirty-one".

Divisors: 1 3 79 237 709 2127 31607 56011 94821 168033 2496953 7490859 22409363 67228089 1770339677 5311019031