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15164157 = 35054719
BaseRepresentation
bin111001110110…
…001011111101
31001112102022110
4321312023331
512340223112
61301004233
7242615241
oct71661375
931472273
1015164157
118618068
1250b3679
1331ac298
14202a421
1514e813c
hexe762fd

15164157 has 4 divisors (see below), whose sum is σ = 20218880. Its totient is φ = 10109436.

The previous prime is 15164141. The next prime is 15164161. The reversal of 15164157 is 75146151.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 15164157 - 24 = 15164141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15164197) 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, 2527357 + ... + 2527362.

It is an arithmetic number, because the mean of its divisors is an integer number (5054720).

Almost surely, 215164157 is an apocalyptic number.

It is an amenable number.

15164157 is a deficient number, since it is larger than the sum of its proper divisors (5054723).

15164157 is an equidigital number, since it uses as much as digits as its factorization.

15164157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5054722.

The product of its digits is 4200, while the sum is 30.

The square root of 15164157 is about 3894.1182570641. The cubic root of 15164157 is about 247.5176030741.

The spelling of 15164157 in words is "fifteen million, one hundred sixty-four thousand, one hundred fifty-seven".

Divisors: 1 3 5054719 15164157