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13875875 = 53138539
BaseRepresentation
bin110100111011…
…101010100011
3222002222010022
4310323222203
512023012000
61213224055
7225641306
oct64735243
928088108
1013875875
117918172
12479202b
132b4aaa0
141bb2b3d
151341585
hexd3baa3

13875875 has 16 divisors (see below), whose sum is σ = 18651360. Its totient is φ = 10245600.

The previous prime is 13875847. The next prime is 13875881. The reversal of 13875875 is 57857831.

It is not a de Polignac number, because 13875875 - 28 = 13875619 is a prime.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2645 + ... + 5894.

It is an arithmetic number, because the mean of its divisors is an integer number (1165710).

Almost surely, 213875875 is an apocalyptic number.

13875875 is a deficient number, since it is larger than the sum of its proper divisors (4775485).

13875875 is an equidigital number, since it uses as much as digits as its factorization.

13875875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8567 (or 8557 counting only the distinct ones).

The product of its digits is 235200, while the sum is 44.

The square root of 13875875 is about 3725.0335568958. The cubic root of 13875875 is about 240.2998278206.

The spelling of 13875875 in words is "thirteen million, eight hundred seventy-five thousand, eight hundred seventy-five".

Divisors: 1 5 13 25 65 125 325 1625 8539 42695 111007 213475 555035 1067375 2775175 13875875