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13868026 = 2149173269
BaseRepresentation
bin110100111001…
…101111111010
3222002120100121
4310321233322
512022234101
61213123454
7225606364
oct64715772
928076317
1013868026
117912287
12478958a
132b47343
141badd34
15133e0a1
hexd39bfa

13868026 has 16 divisors (see below), whose sum is σ = 21141000. Its totient is φ = 6822208.

The previous prime is 13868017. The next prime is 13868027. The reversal of 13868026 is 62086831.

It can be written as a sum of positive squares in 4 ways, for example, as 9006001 + 4862025 = 3001^2 + 2205^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13867982 and 13868000.

It is not an unprimeable number, because it can be changed into a prime (13868027) 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, 51420 + ... + 51688.

Almost surely, 213868026 is an apocalyptic number.

13868026 is a deficient number, since it is larger than the sum of its proper divisors (7272974).

13868026 is a wasteful number, since it uses less digits than its factorization.

13868026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 593.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 13868026 is about 3723.9798603107. The cubic root of 13868026 is about 240.2545100997.

The spelling of 13868026 in words is "thirteen million, eight hundred sixty-eight thousand, twenty-six".

Divisors: 1 2 149 173 269 298 346 538 25777 40081 46537 51554 80162 93074 6934013 13868026