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13986912 = 253532749
BaseRepresentation
bin110101010110…
…110001100000
3222022121102210
4311112301200
512040040122
61215442120
7226613112
oct65266140
928277383
1013986912
117993635
124826340
132b894a4
141c013b2
15136440c
hexd56c60

13986912 has 48 divisors (see below), whose sum is σ = 37422000. Its totient is φ = 4572672.

The previous prime is 13986901. The next prime is 13986923. The reversal of 13986912 is 21968931.

It is an interprime number because it is at equal distance from previous prime (13986901) and next prime (13986923).

It is a tau number, because it is divible by the number of its divisors (48).

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, 3714 + ... + 6462.

It is an arithmetic number, because the mean of its divisors is an integer number (779625).

Almost surely, 213986912 is an apocalyptic number.

13986912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13986912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18711000).

13986912 is an abundant number, since it is smaller than the sum of its proper divisors (23435088).

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

13986912 is a wasteful number, since it uses less digits than its factorization.

13986912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2815 (or 2807 counting only the distinct ones).

The product of its digits is 23328, while the sum is 39.

The square root of 13986912 is about 3739.9080202593. The cubic root of 13986912 is about 240.9390983776.

The spelling of 13986912 in words is "thirteen million, nine hundred eighty-six thousand, nine hundred twelve".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 53 96 106 159 212 318 424 636 848 1272 1696 2544 2749 5088 5498 8247 10996 16494 21992 32988 43984 65976 87968 131952 145697 263904 291394 437091 582788 874182 1165576 1748364 2331152 3496728 4662304 6993456 13986912