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13920488 = 233156131
BaseRepresentation
bin110101000110…
…100011101000
3222012020022122
4311012203220
512030423423
61214210412
7226215341
oct65064350
928166278
1013920488
11794873a
1247b3a08
132b6519a
141bc50c8
15134e8c8
hexd468e8

13920488 has 16 divisors (see below), whose sum is σ = 26943360. Its totient is φ = 6735600.

The previous prime is 13920479. The next prime is 13920509. The reversal of 13920488 is 88402931.

It is a happy 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 3 ways as a sum of consecutive naturals, for example, 27818 + ... + 28313.

It is an arithmetic number, because the mean of its divisors is an integer number (1683960).

Almost surely, 213920488 is an apocalyptic number.

It is an amenable number.

13920488 is a deficient number, since it is larger than the sum of its proper divisors (13022872).

13920488 is a wasteful number, since it uses less digits than its factorization.

13920488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56168 (or 56164 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 13920488 is about 3731.0170195270. The cubic root of 13920488 is about 240.5570855279.

The spelling of 13920488 in words is "thirteen million, nine hundred twenty thousand, four hundred eighty-eight".

Divisors: 1 2 4 8 31 62 124 248 56131 112262 224524 449048 1740061 3480122 6960244 13920488