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13928910 = 2351014597
BaseRepresentation
bin110101001000…
…100111001110
3222012122212120
4311020213032
512031211120
61214313410
7226252032
oct65104716
928178776
1013928910
117953aa6
1247b8866
132b68c78
141bc81c2
151352140
hexd489ce

13928910 has 32 divisors (see below), whose sum is σ = 33767712. Its totient is φ = 3676800.

The previous prime is 13928891. The next prime is 13928917. The reversal of 13928910 is 1982931.

13928910 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13928917) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 732 + ... + 5328.

It is an arithmetic number, because the mean of its divisors is an integer number (1055241).

Almost surely, 213928910 is an apocalyptic number.

13928910 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13928910 is an abundant number, since it is smaller than the sum of its proper divisors (19838802).

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

13928910 is a wasteful number, since it uses less digits than its factorization.

13928910 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4708.

The product of its (nonzero) digits is 3888, while the sum is 33.

The square root of 13928910 is about 3732.1454955561. The cubic root of 13928910 is about 240.6055886967.

The spelling of 13928910 in words is "thirteen million, nine hundred twenty-eight thousand, nine hundred ten".

Divisors: 1 2 3 5 6 10 15 30 101 202 303 505 606 1010 1515 3030 4597 9194 13791 22985 27582 45970 68955 137910 464297 928594 1392891 2321485 2785782 4642970 6964455 13928910