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13964871 = 317273821
BaseRepresentation
bin110101010001…
…011001000111
3222021111012110
4311101121013
512033333441
61215152103
7226461624
oct65213107
928244173
1013964871
117979018
124815633
132b7c44b
141bd734b
15135cb16
hexd51647

13964871 has 8 divisors (see below), whose sum is σ = 19715184. Its totient is φ = 8762240.

The previous prime is 13964861. The next prime is 13964893. The reversal of 13964871 is 17846931.

13964871 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 13964871 - 26 = 13964807 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13964861) 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, 136860 + ... + 136961.

It is an arithmetic number, because the mean of its divisors is an integer number (2464398).

Almost surely, 213964871 is an apocalyptic number.

13964871 is a deficient number, since it is larger than the sum of its proper divisors (5750313).

13964871 is a wasteful number, since it uses less digits than its factorization.

13964871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273841.

The product of its digits is 36288, while the sum is 39.

The square root of 13964871 is about 3736.9601282326. The cubic root of 13964871 is about 240.8124721284.

The spelling of 13964871 in words is "thirteen million, nine hundred sixty-four thousand, eight hundred seventy-one".

Divisors: 1 3 17 51 273821 821463 4654957 13964871