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13868475 = 352184913
BaseRepresentation
bin110100111001…
…110110111011
3222002120222020
4310321312323
512022242400
61213125523
7225610605
oct64716673
928076866
1013868475
117912655
1247898a3
132b475ca
141bb0175
15133e2a0
hexd39dbb

13868475 has 12 divisors (see below), whose sum is σ = 22929336. Its totient is φ = 7396480.

The previous prime is 13868443. The next prime is 13868497. The reversal of 13868475 is 57486831.

It is not a de Polignac number, because 13868475 - 25 = 13868443 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 92382 + ... + 92531.

It is an arithmetic number, because the mean of its divisors is an integer number (1910778).

Almost surely, 213868475 is an apocalyptic number.

13868475 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13868475 is a deficient number, since it is larger than the sum of its proper divisors (9060861).

13868475 is a wasteful number, since it uses less digits than its factorization.

13868475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184926 (or 184921 counting only the distinct ones).

The product of its digits is 161280, while the sum is 42.

The square root of 13868475 is about 3724.0401447890. The cubic root of 13868475 is about 240.2571029492.

The spelling of 13868475 in words is "thirteen million, eight hundred sixty-eight thousand, four hundred seventy-five".

Divisors: 1 3 5 15 25 75 184913 554739 924565 2773695 4622825 13868475