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130429979 = 4153193311
BaseRepresentation
bin1111100011000…
…11010000011011
3100002102112021222
413301203100123
5231342224404
620535322255
73142431221
oct761432033
9302375258
10130429979
1167695a79
123782038b
1321039404
1413472b11
15b6b5dbe
hex7c6341b

130429979 has 16 divisors (see below), whose sum is σ = 137277504. Its totient is φ = 123801600.

The previous prime is 130429963. The next prime is 130429993. The reversal of 130429979 is 979924031.

It is a cyclic number.

It is not a de Polignac number, because 130429979 - 24 = 130429963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130429919) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 419234 + ... + 419544.

It is an arithmetic number, because the mean of its divisors is an integer number (8579844).

Almost surely, 2130429979 is an apocalyptic number.

130429979 is a deficient number, since it is larger than the sum of its proper divisors (6847525).

130429979 is a wasteful number, since it uses less digits than its factorization.

130429979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 598.

The product of its (nonzero) digits is 122472, while the sum is 44.

The square root of 130429979 is about 11420.5945116706. The cubic root of 130429979 is about 507.1375965939.

The spelling of 130429979 in words is "one hundred thirty million, four hundred twenty-nine thousand, nine hundred seventy-nine".

Divisors: 1 41 53 193 311 2173 7913 10229 12751 16483 60023 419389 675803 2460943 3181219 130429979