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130604720 = 2455330803
BaseRepresentation
bin1111100100011…
…01111010110000
3100002202101222212
413302031322300
5231413322340
620543151252
73144056531
oct762157260
9302671885
10130604720
11677a5294
12378a5528
132109aacc
14134ba688
15b6eca65
hex7c8deb0

130604720 has 40 divisors (see below), whose sum is σ = 309395376. Its totient is φ = 51254528.

The previous prime is 130604711. The next prime is 130604723. The reversal of 130604720 is 27406031.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (130604723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11162 + ... + 19641.

Almost surely, 2130604720 is an apocalyptic number.

130604720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130604720 is an abundant number, since it is smaller than the sum of its proper divisors (178790656).

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

130604720 is a wasteful number, since it uses less digits than its factorization.

130604720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30869 (or 30863 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 130604720 is about 11428.2422095439. The cubic root of 130604720 is about 507.3639714050.

The spelling of 130604720 in words is "one hundred thirty million, six hundred four thousand, seven hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 40 53 80 106 212 265 424 530 848 1060 2120 4240 30803 61606 123212 154015 246424 308030 492848 616060 1232120 1632559 2464240 3265118 6530236 8162795 13060472 16325590 26120944 32651180 65302360 130604720