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13856853 = 317271703
BaseRepresentation
bin110100110111…
…000001010101
3222002000000210
4310313001111
512021404403
61213000033
7225531663
oct64670125
928060023
1013856853
11790494a
124783019
132b4222a
141ba9c33
15133ab03
hexd37055

13856853 has 8 divisors (see below), whose sum is σ = 19562688. Its totient is φ = 8694464.

The previous prime is 13856839. The next prime is 13856861. The reversal of 13856853 is 35865831.

13856853 is digitally balanced in base 2, 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 13856853 - 26 = 13856789 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13856863) 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, 135801 + ... + 135902.

It is an arithmetic number, because the mean of its divisors is an integer number (2445336).

Almost surely, 213856853 is an apocalyptic number.

It is an amenable number.

13856853 is a deficient number, since it is larger than the sum of its proper divisors (5705835).

13856853 is a wasteful number, since it uses less digits than its factorization.

13856853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271723.

The product of its digits is 86400, while the sum is 39.

The square root of 13856853 is about 3722.4794156583. The cubic root of 13856853 is about 240.1899711172.

The spelling of 13856853 in words is "thirteen million, eight hundred fifty-six thousand, eight hundred fifty-three".

Divisors: 1 3 17 51 271703 815109 4618951 13856853