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130515220 = 22511593251
BaseRepresentation
bin1111100011110…
…00000100010100
3100002120212020001
413301320010110
5231402441340
620541221044
73143234563
oct761700424
9302525201
10130515220
1167744020
1237861784
1321069154
1413495bda
15b6d129a
hex7c78114

130515220 has 24 divisors (see below), whose sum is σ = 298999008. Its totient is φ = 47460000.

The previous prime is 130515197. The next prime is 130515221. The reversal of 130515220 is 22515031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130515221) 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, 296406 + ... + 296845.

It is an arithmetic number, because the mean of its divisors is an integer number (12458292).

Almost surely, 2130515220 is an apocalyptic number.

130515220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130515220 is an abundant number, since it is smaller than the sum of its proper divisors (168483788).

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

130515220 is a wasteful number, since it uses less digits than its factorization.

130515220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 593271 (or 593269 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 130515220 is about 11424.3258006764. The cubic root of 130515220 is about 507.2480505002.

The spelling of 130515220 in words is "one hundred thirty million, five hundred fifteen thousand, two hundred twenty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 593251 1186502 2373004 2966255 5932510 6525761 11865020 13051522 26103044 32628805 65257610 130515220