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13869268 = 227677393
BaseRepresentation
bin110100111010…
…000011010100
3222002122001121
4310322003110
512022304033
61213133324
7225613120
oct64720324
928078047
1013869268
117913206
12478a244
132b47a8a
141bb0580
15133e62d
hexd3a0d4

13869268 has 24 divisors (see below), whose sum is σ = 28156352. Its totient is φ = 5854464.

The previous prime is 13869257. The next prime is 13869283. The reversal of 13869268 is 86296831.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1821 + ... + 5572.

Almost surely, 213869268 is an apocalyptic number.

It is an amenable number.

13869268 is an abundant number, since it is smaller than the sum of its proper divisors (14287084).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13869268 is a wasteful number, since it uses less digits than its factorization.

13869268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7471 (or 7469 counting only the distinct ones).

The product of its digits is 124416, while the sum is 43.

The square root of 13869268 is about 3724.1466136553. The cubic root of 13869268 is about 240.2616821657.

The spelling of 13869268 in words is "thirteen million, eight hundred sixty-nine thousand, two hundred sixty-eight".

Divisors: 1 2 4 7 14 28 67 134 268 469 938 1876 7393 14786 29572 51751 103502 207004 495331 990662 1981324 3467317 6934634 13869268