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130353728 = 267128687
BaseRepresentation
bin1111100010100…
…00101001000000
3100002021122200212
413301100221000
5231332304403
620533533252
73141663011
oct761205100
9302248625
10130353728
116764375a
12377a4228
13210107ab
1413453008
15b69d4d8
hex7c50a40

130353728 has 28 divisors (see below), whose sum is σ = 262323072. Its totient is φ = 64256640.

The previous prime is 130353721. The next prime is 130353757. The reversal of 130353728 is 827353031.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 130353694 and 130353703.

It is not an unprimeable number, because it can be changed into a prime (130353721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9800 + ... + 18887.

Almost surely, 2130353728 is an apocalyptic number.

It is an amenable number.

130353728 is an abundant number, since it is smaller than the sum of its proper divisors (131969344).

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

130353728 is an equidigital number, since it uses as much as digits as its factorization.

130353728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28770 (or 28760 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 130353728 is about 11417.2557122979. The cubic root of 130353728 is about 507.0387509981.

The spelling of 130353728 in words is "one hundred thirty million, three hundred fifty-three thousand, seven hundred twenty-eight".

Divisors: 1 2 4 8 16 32 64 71 142 284 568 1136 2272 4544 28687 57374 114748 229496 458992 917984 1835968 2036777 4073554 8147108 16294216 32588432 65176864 130353728