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130939976 = 2367244291
BaseRepresentation
bin1111100110111…
…11110001001000
3100010101102212202
413303133301020
5232010034401
620554255332
73146654126
oct763376110
9303342782
10130939976
1167a04162
1237a27548
132118759b
1413566916
15b76706b
hex7cdfc48

130939976 has 16 divisors (see below), whose sum is σ = 249177840. Its totient is φ = 64492560.

The previous prime is 130939973. The next prime is 130939997. The reversal of 130939976 is 679939031.

It is a self number, because there is not a number n which added to its sum of digits gives 130939976.

It is not an unprimeable number, because it can be changed into a prime (130939973) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121610 + ... + 122681.

It is an arithmetic number, because the mean of its divisors is an integer number (15573615).

Almost surely, 2130939976 is an apocalyptic number.

It is an amenable number.

130939976 is a deficient number, since it is larger than the sum of its proper divisors (118237864).

130939976 is a wasteful number, since it uses less digits than its factorization.

130939976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244364 (or 244360 counting only the distinct ones).

The product of its (nonzero) digits is 275562, while the sum is 47.

The square root of 130939976 is about 11442.9006812084. The cubic root of 130939976 is about 507.7977267327.

The spelling of 130939976 in words is "one hundred thirty million, nine hundred thirty-nine thousand, nine hundred seventy-six".

Divisors: 1 2 4 8 67 134 268 536 244291 488582 977164 1954328 16367497 32734994 65469988 130939976