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149679113 = 257582409
BaseRepresentation
bin10001110101111…
…10110000001001
3101102122111010212
420322332300021
5301304212423
622504050505
73465152153
oct1072766011
9342574125
10149679113
1177543151
1242163a35
1325018b2c
1415c43ad3
15d219578
hex8ebec09

149679113 has 4 divisors (see below), whose sum is σ = 150261780. Its totient is φ = 149096448.

The previous prime is 149679107. The next prime is 149679143. The reversal of 149679113 is 311976941.

149679113 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 311976941 = 1916419839.

It can be written as a sum of positive squares in 2 ways, for example, as 126945289 + 22733824 = 11267^2 + 4768^2 .

It is a cyclic number.

It is not a de Polignac number, because 149679113 - 222 = 145484809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (149679143) 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, 290948 + ... + 291461.

It is an arithmetic number, because the mean of its divisors is an integer number (37565445).

Almost surely, 2149679113 is an apocalyptic number.

It is an amenable number.

149679113 is a deficient number, since it is larger than the sum of its proper divisors (582667).

149679113 is an equidigital number, since it uses as much as digits as its factorization.

149679113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582666.

The product of its digits is 40824, while the sum is 41.

The square root of 149679113 is about 12234.3415433770. The cubic root of 149679113 is about 530.9501326291.

The spelling of 149679113 in words is "one hundred forty-nine million, six hundred seventy-nine thousand, one hundred thirteen".

Divisors: 1 257 582409 149679113