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13113899 = 311093881
BaseRepresentation
bin110010000001…
…101000101011
3220200020212222
4302001220223
511324121044
61145024255
7216315641
oct62015053
926606788
1013113899
117447737
12448508b
132942006
141a55191
1512408ee
hexc81a2b

13113899 has 8 divisors (see below), whose sum is σ = 13664640. Its totient is φ = 12571200.

The previous prime is 13113811. The next prime is 13113929. The reversal of 13113899 is 99831131.

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

It is a cyclic number.

It is not a de Polignac number, because 13113899 - 28 = 13113643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13110899) 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, 1439 + ... + 5319.

It is an arithmetic number, because the mean of its divisors is an integer number (1708080).

Almost surely, 213113899 is an apocalyptic number.

13113899 is a deficient number, since it is larger than the sum of its proper divisors (550741).

13113899 is a wasteful number, since it uses less digits than its factorization.

13113899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4021.

The product of its digits is 5832, while the sum is 35.

The square root of 13113899 is about 3621.3117789000. The cubic root of 13113899 is about 235.8181772472.

The spelling of 13113899 in words is "thirteen million, one hundred thirteen thousand, eight hundred ninety-nine".

Divisors: 1 31 109 3379 3881 120311 423029 13113899