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9979631441 = 136711457671
BaseRepresentation
bin10010100101101010…
…10001011101010001
3221202111102210201022
421102311101131101
5130414241201231
64330134045225
7502206316253
oct112265213521
927674383638
109979631441
11426127289a
121b261a9815
13c30708380
146a957dcd3
153d61d7c7b
hex252d51751

9979631441 has 8 divisors (see below), whose sum is σ = 10907703744. Its totient is φ = 9074474640.

The previous prime is 9979631429. The next prime is 9979631447. The reversal of 9979631441 is 1441369799.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 9979631441 - 214 = 9979615057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9979631447) 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, 5727965 + ... + 5729706.

It is an arithmetic number, because the mean of its divisors is an integer number (1363462968).

Almost surely, 29979631441 is an apocalyptic number.

It is an amenable number.

9979631441 is a deficient number, since it is larger than the sum of its proper divisors (928072303).

9979631441 is a wasteful number, since it uses less digits than its factorization.

9979631441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11457751.

The product of its digits is 1469664, while the sum is 53.

The square root of 9979631441 is about 99898.1052923428. The cubic root of 9979631441 is about 2152.9709380945.

The spelling of 9979631441 in words is "nine billion, nine hundred seventy-nine million, six hundred thirty-one thousand, four hundred forty-one".

Divisors: 1 13 67 871 11457671 148949723 767663957 9979631441