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130120015 = 5612331831
BaseRepresentation
bin1111100000101…
…11100101001111
3100001211210002211
413300113211033
5231302320030
620524531251
73140000434
oct760274517
9301753084
10130120015
11674a4103
12376b0b27
1320c5b2bc
14133d1b8b
15b65412a
hex7c1794f

130120015 has 16 divisors (see below), whose sum is σ = 159471936. Its totient is φ = 101894400.

The previous prime is 130120007. The next prime is 130120033. The reversal of 130120015 is 510021031.

It is not a de Polignac number, because 130120015 - 23 = 130120007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 130119977 and 130120004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70150 + ... + 71980.

It is an arithmetic number, because the mean of its divisors is an integer number (9966996).

Almost surely, 2130120015 is an apocalyptic number.

130120015 is a deficient number, since it is larger than the sum of its proper divisors (29351921).

130120015 is a wasteful number, since it uses less digits than its factorization.

130120015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2130.

The product of its (nonzero) digits is 30, while the sum is 13.

The square root of 130120015 is about 11407.0160427695. The cubic root of 130120015 is about 506.7355441238.

Adding to 130120015 its reverse (510021031), we get a palindrome (640141046).

It can be divided in two parts, 1301 and 20015, that added together give a square (21316 = 1462).

The spelling of 130120015 in words is "one hundred thirty million, one hundred twenty thousand, fifteen".

Divisors: 1 5 61 233 305 1165 1831 9155 14213 71065 111691 426623 558455 2133115 26024003 130120015