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130228904 = 23131252201
BaseRepresentation
bin1111100001100…
…10001010101000
3100002001022110202
413300302022220
5231314311104
620531131332
73140633051
oct760621250
9302038422
10130228904
11675689a3
1237743b48
1320c98a30
141341d728
15b67651e
hex7c322a8

130228904 has 16 divisors (see below), whose sum is σ = 262962420. Its totient is φ = 60105600.

The previous prime is 130228877. The next prime is 130228913. The reversal of 130228904 is 409822031.

It can be written as a sum of positive squares in 2 ways, for example, as 130188100 + 40804 = 11410^2 + 202^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 625997 + ... + 626204.

Almost surely, 2130228904 is an apocalyptic number.

It is an amenable number.

130228904 is an abundant number, since it is smaller than the sum of its proper divisors (132733516).

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

130228904 is a wasteful number, since it uses less digits than its factorization.

130228904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1252220 (or 1252216 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 130228904 is about 11411.7879405464. The cubic root of 130228904 is about 506.8768560816.

The spelling of 130228904 in words is "one hundred thirty million, two hundred twenty-eight thousand, nine hundred four".

Divisors: 1 2 4 8 13 26 52 104 1252201 2504402 5008804 10017608 16278613 32557226 65114452 130228904