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13157394 = 232192899
BaseRepresentation
bin110010001100…
…010000010010
3220202110112220
4302030100102
511332014034
61150001510
7216556515
oct62142022
926673486
1013157394
117477388
1244a6296
132958a53
141a66d7c
15124d749
hexc8c412

13157394 has 8 divisors (see below), whose sum is σ = 26314800. Its totient is φ = 4385796.

The previous prime is 13157383. The next prime is 13157399. The reversal of 13157394 is 49375131.

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

13157394 is an admirable number.

It is a super-3 number, since 3×131573943 (a number of 22 digits) contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13157399) 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, 1096444 + ... + 1096455.

It is an arithmetic number, because the mean of its divisors is an integer number (3289350).

Almost surely, 213157394 is an apocalyptic number.

13157394 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13157394 is a wasteful number, since it uses less digits than its factorization.

13157394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2192904.

The product of its digits is 11340, while the sum is 33.

The square root of 13157394 is about 3627.3122280829. The cubic root of 13157394 is about 236.0786030426.

The spelling of 13157394 in words is "thirteen million, one hundred fifty-seven thousand, three hundred ninety-four".

Divisors: 1 2 3 6 2192899 4385798 6578697 13157394