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130755220 = 22520113251
BaseRepresentation
bin1111100101100…
…10101010010100
3100010001001102221
413302302222110
5231433131340
620550312124
73145254361
oct762625224
9303031387
10130755220
1167898372
1237958644
132112146b
1413519468
15b72c44a
hex7cb2a94

130755220 has 24 divisors (see below), whose sum is σ = 274807008. Its totient is φ = 52260000.

The previous prime is 130755203. The next prime is 130755221. The reversal of 130755220 is 22557031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130755221) 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, 38595 + ... + 41845.

It is an arithmetic number, because the mean of its divisors is an integer number (11450292).

Almost surely, 2130755220 is an apocalyptic number.

130755220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130755220 is an abundant number, since it is smaller than the sum of its proper divisors (144051788).

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

130755220 is a wasteful number, since it uses less digits than its factorization.

130755220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5271 (or 5269 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 130755220 is about 11434.8248784142. The cubic root of 130755220 is about 507.5587805115.

The spelling of 130755220 in words is "one hundred thirty million, seven hundred fifty-five thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 2011 3251 4022 6502 8044 10055 13004 16255 20110 32510 40220 65020 6537761 13075522 26151044 32688805 65377610 130755220