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12849157 = 231793121
BaseRepresentation
bin110001000001…
…000000000101
3220011210201201
4301001000011
511242133112
61135222501
7214134046
oct61010005
926153651
1012849157
117286842
124377a31
13287b669
1419c68cd
1511dc257
hexc41005

12849157 has 8 divisors (see below), whose sum is σ = 13487040. Its totient is φ = 12217920.

The previous prime is 12849139. The next prime is 12849163. The reversal of 12849157 is 75194821.

12849157 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 12849157 - 215 = 12816389 is a prime.

It is a super-2 number, since 2×128491572 = 330201671221298, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12849107) 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, 2557 + ... + 5677.

It is an arithmetic number, because the mean of its divisors is an integer number (1685880).

Almost surely, 212849157 is an apocalyptic number.

It is an amenable number.

12849157 is a deficient number, since it is larger than the sum of its proper divisors (637883).

12849157 is a wasteful number, since it uses less digits than its factorization.

12849157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3323.

The product of its digits is 20160, while the sum is 37.

The square root of 12849157 is about 3584.5720804581. The cubic root of 12849157 is about 234.2204864129.

The spelling of 12849157 in words is "twelve million, eight hundred forty-nine thousand, one hundred fifty-seven".

Divisors: 1 23 179 3121 4117 71783 558659 12849157