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13869075 = 3521116811
BaseRepresentation
bin110100111010…
…000000010011
3222002121210110
4310322000103
512022302300
61213132403
7225612423
oct64720023
928077713
1013869075
117913050
12478a103
132b4796c
141bb0483
15133e550
hexd3a013

13869075 has 24 divisors (see below), whose sum is σ = 25016256. Its totient is φ = 6724000.

The previous prime is 13869073. The next prime is 13869103. The reversal of 13869075 is 57096831.

It is not a de Polignac number, because 13869075 - 21 = 13869073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13869073) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7581 + ... + 9230.

It is an arithmetic number, because the mean of its divisors is an integer number (1042344).

Almost surely, 213869075 is an apocalyptic number.

13869075 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13869075 is a deficient number, since it is larger than the sum of its proper divisors (11147181).

13869075 is a wasteful number, since it uses less digits than its factorization.

13869075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16835 (or 16830 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 13869075 is about 3724.1207015885. The cubic root of 13869075 is about 240.2605676941.

The spelling of 13869075 in words is "thirteen million, eight hundred sixty-nine thousand, seventy-five".

Divisors: 1 3 5 11 15 25 33 55 75 165 275 825 16811 50433 84055 184921 252165 420275 554763 924605 1260825 2773815 4623025 13869075