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13886844 = 2231157237
BaseRepresentation
bin110100111110…
…010101111100
3222010112011120
4310332111330
512023334334
61213350540
7226015266
oct64762574
928115146
1013886844
117925434
124798450
132b52a8a
141bb6b36
151344949
hexd3e57c

13886844 has 12 divisors (see below), whose sum is σ = 32402664. Its totient is φ = 4628944.

The previous prime is 13886843. The next prime is 13886861. The reversal of 13886844 is 44868831.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 13886796 and 13886805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13886843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 578607 + ... + 578630.

It is an arithmetic number, because the mean of its divisors is an integer number (2700222).

Almost surely, 213886844 is an apocalyptic number.

It is an amenable number.

13886844 is an abundant number, since it is smaller than the sum of its proper divisors (18515820).

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

13886844 is a wasteful number, since it uses less digits than its factorization.

13886844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1157244 (or 1157242 counting only the distinct ones).

The product of its digits is 147456, while the sum is 42.

The square root of 13886844 is about 3726.5056017669. The cubic root of 13886844 is about 240.3631308451.

The spelling of 13886844 in words is "thirteen million, eight hundred eighty-six thousand, eight hundred forty-four".

Divisors: 1 2 3 4 6 12 1157237 2314474 3471711 4628948 6943422 13886844