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13906632 = 2331930497
BaseRepresentation
bin110101000011…
…001011001000
3222011112022110
4311003023020
512030003012
61214022320
7226130055
oct65031310
928145273
1013906632
117939293
1247a79a0
132b5ba9c
141bc002c
15134a73c
hexd432c8

13906632 has 32 divisors (see below), whose sum is σ = 36597600. Its totient is φ = 4391424.

The previous prime is 13906601. The next prime is 13906637. The reversal of 13906632 is 23660931.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 13906632.

It is not an unprimeable number, because it can be changed into a prime (13906637) 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, 14793 + ... + 15704.

It is an arithmetic number, because the mean of its divisors is an integer number (1143675).

Almost surely, 213906632 is an apocalyptic number.

13906632 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13906632 is an abundant number, since it is smaller than the sum of its proper divisors (22690968).

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

13906632 is a wasteful number, since it uses less digits than its factorization.

13906632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30525 (or 30521 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 30.

The square root of 13906632 is about 3729.1596908687. The cubic root of 13906632 is about 240.4772448046.

The spelling of 13906632 in words is "thirteen million, nine hundred six thousand, six hundred thirty-two".

Divisors: 1 2 3 4 6 8 12 19 24 38 57 76 114 152 228 456 30497 60994 91491 121988 182982 243976 365964 579443 731928 1158886 1738329 2317772 3476658 4635544 6953316 13906632