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149792961 = 3313175081
BaseRepresentation
bin10001110110110…
…10100011000001
3101102212021022110
420323122203001
5301321333321
622510325533
73466135113
oct1073324301
9342767273
10149792961
117761073a
12421b98a9
13250588b6
1415c733b3
15d23d176
hex8eda8c1

149792961 has 16 divisors (see below), whose sum is σ = 206857728. Its totient is φ = 96316800.

The previous prime is 149792939. The next prime is 149792969. The reversal of 149792961 is 169297941.

It is not a de Polignac number, because 149792961 - 27 = 149792833 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 149792961.

It is not an unprimeable number, because it can be changed into a prime (149792969) by changing a digit.

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, 26941 + ... + 32021.

It is an arithmetic number, because the mean of its divisors is an integer number (12928608).

Almost surely, 2149792961 is an apocalyptic number.

It is an amenable number.

149792961 is a deficient number, since it is larger than the sum of its proper divisors (57064767).

149792961 is a wasteful number, since it uses less digits than its factorization.

149792961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5432.

The product of its digits is 244944, while the sum is 48.

The square root of 149792961 is about 12238.9934635165. The cubic root of 149792961 is about 531.0847145139.

The spelling of 149792961 in words is "one hundred forty-nine million, seven hundred ninety-two thousand, nine hundred sixty-one".

Divisors: 1 3 31 93 317 951 5081 9827 15243 29481 157511 472533 1610677 4832031 49930987 149792961