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149159157 = 377102817
BaseRepresentation
bin10001110001111…
…11110011110101
3101101200001220020
420320333303311
5301141043112
622444555353
73460555230
oct1070776365
9341601806
10149159157
1177218534
1241b52b59
1324b96274
1415b4a417
15d16548c
hex8e3fcf5

149159157 has 8 divisors (see below), whose sum is σ = 227290176. Its totient is φ = 85233792.

The previous prime is 149159149. The next prime is 149159191. The reversal of 149159157 is 751951941.

It is a happy number.

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

It is not a de Polignac number, because 149159157 - 23 = 149159149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149159137) 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, 3551388 + ... + 3551429.

It is an arithmetic number, because the mean of its divisors is an integer number (28411272).

Almost surely, 2149159157 is an apocalyptic number.

It is an amenable number.

149159157 is a deficient number, since it is larger than the sum of its proper divisors (78131019).

149159157 is an equidigital number, since it uses as much as digits as its factorization.

149159157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7102827.

The product of its digits is 56700, while the sum is 42.

The square root of 149159157 is about 12213.0732004684. The cubic root of 149159157 is about 530.3346136657.

The spelling of 149159157 in words is "one hundred forty-nine million, one hundred fifty-nine thousand, one hundred fifty-seven".

Divisors: 1 3 7 21 7102817 21308451 49719719 149159157