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130513860 = 22325725077
BaseRepresentation
bin1111100011101…
…11101111000100
3100002120210100200
413301313233010
5231402420420
620541210500
73143230611
oct761675704
9302523320
10130513860
1167742aa4
1237860a30
1321068649
1413495508
15b6d0b90
hex7c77bc4

130513860 has 36 divisors (see below), whose sum is σ = 395892588. Its totient is φ = 34803648.

The previous prime is 130513849. The next prime is 130513919. The reversal of 130513860 is 68315031.

It can be written as a sum of positive squares in 2 ways, for example, as 46131264 + 84382596 = 6792^2 + 9186^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 362359 + ... + 362718.

Almost surely, 2130513860 is an apocalyptic number.

130513860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130513860 is an abundant number, since it is smaller than the sum of its proper divisors (265378728).

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

130513860 is a wasteful number, since it uses less digits than its factorization.

130513860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 725092 (or 725087 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 130513860 is about 11424.2662784093. The cubic root of 130513860 is about 507.2462886118.

Adding to 130513860 its reverse (68315031), we get a palindrome (198828891).

The spelling of 130513860 in words is "one hundred thirty million, five hundred thirteen thousand, eight hundred sixty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 180 725077 1450154 2175231 2900308 3625385 4350462 6525693 7250770 8700924 10876155 13051386 14501540 21752310 26102772 32628465 43504620 65256930 130513860