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13768912 = 2417223227
BaseRepresentation
bin110100100001…
…100011010000
3221220112101201
4310201203100
512011101122
61211040544
7225014413
oct64414320
927815351
1013768912
117854873
124740154
132b111b1
141b85b7a
15131ea27
hexd218d0

13768912 has 40 divisors (see below), whose sum is σ = 28498176. Its totient is φ = 6422016.

The previous prime is 13768891. The next prime is 13768913. The reversal of 13768912 is 21986731.

13768912 = 1292 + 1302 + ... + 3512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13768913) 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, 60543 + ... + 60769.

Almost surely, 213768912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13768912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14249088).

13768912 is an abundant number, since it is smaller than the sum of its proper divisors (14729264).

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

13768912 is a wasteful number, since it uses less digits than its factorization.

13768912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475 (or 469 counting only the distinct ones).

The product of its digits is 18144, while the sum is 37.

The square root of 13768912 is about 3710.6484608489. The cubic root of 13768912 is about 239.6807793009.

The spelling of 13768912 in words is "thirteen million, seven hundred sixty-eight thousand, nine hundred twelve".

Divisors: 1 2 4 8 16 17 34 68 136 223 227 272 446 454 892 908 1784 1816 3568 3632 3791 3859 7582 7718 15164 15436 30328 30872 50621 60656 61744 101242 202484 404968 809936 860557 1721114 3442228 6884456 13768912