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130103725 = 5219726417
BaseRepresentation
bin1111100000100…
…11100110101101
3100001210221202111
413300103212231
5231301304400
620524324021
73136602103
oct760234655
9301727674
10130103725
1167492944
12376a3611
1320c53a6b
14133c9c73
15b64e3ba
hex7c139ad

130103725 has 12 divisors (see below), whose sum is σ = 162153684. Its totient is φ = 103550720.

The previous prime is 130103723. The next prime is 130103731. The reversal of 130103725 is 527301031.

It can be written as a sum of positive squares in 6 ways, for example, as 6889 + 130096836 = 83^2 + 11406^2 .

It is not a de Polignac number, because 130103725 - 21 = 130103723 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 130103696 and 130103705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130103723) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8284 + ... + 18133.

It is an arithmetic number, because the mean of its divisors is an integer number (13512807).

Almost surely, 2130103725 is an apocalyptic number.

It is an amenable number.

130103725 is a deficient number, since it is larger than the sum of its proper divisors (32049959).

130103725 is a wasteful number, since it uses less digits than its factorization.

130103725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26624 (or 26619 counting only the distinct ones).

The product of its (nonzero) digits is 630, while the sum is 22.

The square root of 130103725 is about 11406.3019861829. The cubic root of 130103725 is about 506.7143968096.

Adding to 130103725 its reverse (527301031), we get a palindrome (657404756).

The spelling of 130103725 in words is "one hundred thirty million, one hundred three thousand, seven hundred twenty-five".

Divisors: 1 5 25 197 985 4925 26417 132085 660425 5204149 26020745 130103725