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130125012 = 22310843751
BaseRepresentation
bin1111100000110…
…00110011010100
3100001212000221220
413300120303110
5231303000022
620525010340
73140021133
oct760306324
9301760856
10130125012
11674a7936
12376b39b0
1320c60664
14133d391a
15b65585c
hex7c18cd4

130125012 has 12 divisors (see below), whose sum is σ = 303625056. Its totient is φ = 43375000.

The previous prime is 130124971. The next prime is 130125029. The reversal of 130125012 is 210521031.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 130124982 and 130125000.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5421864 + ... + 5421887.

It is an arithmetic number, because the mean of its divisors is an integer number (25302088).

Almost surely, 2130125012 is an apocalyptic number.

130125012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

130125012 is an abundant number, since it is smaller than the sum of its proper divisors (173500044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

130125012 is a wasteful number, since it uses less digits than its factorization.

130125012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10843758 (or 10843756 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 130125012 is about 11407.2350725318. The cubic root of 130125012 is about 506.7420307639.

Adding to 130125012 its reverse (210521031), we get a palindrome (340646043).

The spelling of 130125012 in words is "one hundred thirty million, one hundred twenty-five thousand, twelve".

Divisors: 1 2 3 4 6 12 10843751 21687502 32531253 43375004 65062506 130125012