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130975816 = 23192513433
BaseRepresentation
bin1111100111010…
…00100001001000
3100010110021001011
413303220201020
5232012211231
620555133304
73150163456
oct763504110
9303407034
10130975816
1167a29084
1237a44234
132119a9aa
14135759d6
15b7729b1
hex7ce8848

130975816 has 32 divisors (see below), whose sum is σ = 259610400. Its totient is φ = 61776000.

The previous prime is 130975813. The next prime is 130975843. The reversal of 130975816 is 618579031.

It is not an unprimeable number, because it can be changed into a prime (130975813) 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, 36436 + ... + 39868.

It is an arithmetic number, because the mean of its divisors is an integer number (8112825).

Almost surely, 2130975816 is an apocalyptic number.

It is an amenable number.

130975816 is a deficient number, since it is larger than the sum of its proper divisors (128634584).

130975816 is a wasteful number, since it uses less digits than its factorization.

130975816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3709 (or 3705 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 40.

The square root of 130975816 is about 11444.4666105503. The cubic root of 130975816 is about 507.8440528200.

The spelling of 130975816 in words is "one hundred thirty million, nine hundred seventy-five thousand, eight hundred sixteen".

Divisors: 1 2 4 8 19 38 76 152 251 502 1004 2008 3433 4769 6866 9538 13732 19076 27464 38152 65227 130454 260908 521816 861683 1723366 3446732 6893464 16371977 32743954 65487908 130975816