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13808902 = 228124571
BaseRepresentation
bin110100101011…
…010100000110
3221222120020211
4310223110012
512013341102
61211550034
7225242122
oct64532406
927876224
1013808902
117881918
12475b31a
132b26463
141b96582
15132b7d7
hexd2b506

13808902 has 8 divisors (see below), whose sum is σ = 20787912. Its totient is φ = 6879600.

The previous prime is 13808887. The next prime is 13808903. The reversal of 13808902 is 20980831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13808903) by changing a digit.

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, 11724 + ... + 12847.

It is an arithmetic number, because the mean of its divisors is an integer number (2598489).

Almost surely, 213808902 is an apocalyptic number.

13808902 is a deficient number, since it is larger than the sum of its proper divisors (6979010).

13808902 is a wasteful number, since it uses less digits than its factorization.

13808902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24854.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 13808902 is about 3716.0330999602. The cubic root of 13808902 is about 239.9125954872.

The spelling of 13808902 in words is "thirteen million, eight hundred eight thousand, nine hundred two".

Divisors: 1 2 281 562 24571 49142 6904451 13808902