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130291500 = 2235386861
BaseRepresentation
bin1111100010000…
…01011100101100
3100002011111100010
413301001130230
5231323312000
620532333220
73141313413
oct761013454
9302144303
10130291500
1167600a29
1237774210
1320cbb381
141343847a
15b689d50
hex7c4172c

130291500 has 48 divisors (see below), whose sum is σ = 379413216. Its totient is φ = 34744000.

The previous prime is 130291489. The next prime is 130291517. The reversal of 130291500 is 5192031.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41931 + ... + 44930.

It is an arithmetic number, because the mean of its divisors is an integer number (7904442).

Almost surely, 2130291500 is an apocalyptic number.

130291500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130291500 is an abundant number, since it is smaller than the sum of its proper divisors (249121716).

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

130291500 is a wasteful number, since it uses less digits than its factorization.

130291500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86883 (or 86871 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 21.

The square root of 130291500 is about 11414.5302137232. The cubic root of 130291500 is about 506.9580551102.

The spelling of 130291500 in words is "one hundred thirty million, two hundred ninety-one thousand, five hundred".

Divisors: 1 2 3 4 5 6 10 12 15 20 25 30 50 60 75 100 125 150 250 300 375 500 750 1500 86861 173722 260583 347444 434305 521166 868610 1042332 1302915 1737220 2171525 2605830 4343050 5211660 6514575 8686100 10857625 13029150 21715250 26058300 32572875 43430500 65145750 130291500