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13157814 = 2310632063
BaseRepresentation
bin110010001100…
…010110110110
3220202111010110
4302030112312
511332022224
61150003450
7216560655
oct62142666
926674113
1013157814
11747772a
1244a6586
132958cb7
141a6719c
15124d929
hexc8c5b6

13157814 has 16 divisors (see below), whose sum is σ = 26353152. Its totient is φ = 4379688.

The previous prime is 13157803. The next prime is 13157819. The reversal of 13157814 is 41875131.

13157814 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13157819) 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, 5347 + ... + 7409.

It is an arithmetic number, because the mean of its divisors is an integer number (1647072).

Almost surely, 213157814 is an apocalyptic number.

13157814 is an abundant number, since it is smaller than the sum of its proper divisors (13195338).

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

13157814 is a wasteful number, since it uses less digits than its factorization.

13157814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3131.

The product of its digits is 3360, while the sum is 30.

The square root of 13157814 is about 3627.3701217273. The cubic root of 13157814 is about 236.0811149878.

The spelling of 13157814 in words is "thirteen million, one hundred fifty-seven thousand, eight hundred fourteen".

Divisors: 1 2 3 6 1063 2063 2126 3189 4126 6189 6378 12378 2192969 4385938 6578907 13157814