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130670528 = 264743441
BaseRepresentation
bin1111100100111…
…01111111000000
3100002212202021012
413302131333000
5231422424103
620544420052
73144452432
oct762357700
9302782235
10130670528
116783a77a
1237917628
13210c1a51
14134d6652
15b7122d8
hex7c9dfc0

130670528 has 28 divisors (see below), whose sum is σ = 264822432. Its totient is φ = 63943680.

The previous prime is 130670513. The next prime is 130670539. The reversal of 130670528 is 825076031.

It is a happy number.

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 = 130670494 and 130670503.

It is a congruent number.

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, 18713 + ... + 24728.

It is an arithmetic number, because the mean of its divisors is an integer number (9457944).

Almost surely, 2130670528 is an apocalyptic number.

It is an amenable number.

130670528 is an abundant number, since it is smaller than the sum of its proper divisors (134151904).

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

130670528 is an equidigital number, since it uses as much as digits as its factorization.

130670528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43500 (or 43490 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 130670528 is about 11431.1210298903. The cubic root of 130670528 is about 507.4491725165.

The spelling of 130670528 in words is "one hundred thirty million, six hundred seventy thousand, five hundred twenty-eight".

Divisors: 1 2 4 8 16 32 47 64 94 188 376 752 1504 3008 43441 86882 173764 347528 695056 1390112 2041727 2780224 4083454 8166908 16333816 32667632 65335264 130670528