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130233540 = 22354874457
BaseRepresentation
bin1111100001100…
…11010011000100
3100002001112211110
413300303103010
5231314433130
620531205020
73140652423
oct760632304
9302045743
10130233540
1167571428
1237746770
1320c9ab88
14134212ba
15b677ab0
hex7c334c4

130233540 has 48 divisors (see below), whose sum is σ = 365484672. Its totient is φ = 34649856.

The previous prime is 130233539. The next prime is 130233553. The reversal of 130233540 is 45332031.

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, 26992 + ... + 31448.

It is an arithmetic number, because the mean of its divisors is an integer number (7614264).

Almost surely, 2130233540 is an apocalyptic number.

130233540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130233540 is an abundant number, since it is smaller than the sum of its proper divisors (235251132).

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

130233540 is a wasteful number, since it uses less digits than its factorization.

130233540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4956 (or 4954 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 130233540 is about 11411.9910620365. The cubic root of 130233540 is about 506.8828707557.

Adding to 130233540 its reverse (45332031), we get a palindrome (175565571).

The spelling of 130233540 in words is "one hundred thirty million, two hundred thirty-three thousand, five hundred forty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 487 974 1461 1948 2435 2922 4457 4870 5844 7305 8914 9740 13371 14610 17828 22285 26742 29220 44570 53484 66855 89140 133710 267420 2170559 4341118 6511677 8682236 10852795 13023354 21705590 26046708 32558385 43411180 65116770 130233540