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13334989 = 21163199
BaseRepresentation
bin110010110111…
…100111001101
3221002111011111
4302313213031
511403204424
61153452021
7221226343
oct62674715
927074144
1013334989
117588858
124571011
1329bb835
141ab1993
151286194
hexcb79cd

13334989 has 4 divisors (see below), whose sum is σ = 13398400. Its totient is φ = 13271580.

The previous prime is 13334977. The next prime is 13334999. The reversal of 13334989 is 98943331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 98943331 = 293411839.

It is a cyclic number.

It is not a de Polignac number, because 13334989 - 25 = 13334957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13334939) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31389 + ... + 31810.

It is an arithmetic number, because the mean of its divisors is an integer number (3349600).

Almost surely, 213334989 is an apocalyptic number.

It is an amenable number.

13334989 is a deficient number, since it is larger than the sum of its proper divisors (63411).

13334989 is an equidigital number, since it uses as much as digits as its factorization.

13334989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63410.

The product of its digits is 69984, while the sum is 40.

The square root of 13334989 is about 3651.7104211588. The cubic root of 13334989 is about 237.1360349426.

The spelling of 13334989 in words is "thirteen million, three hundred thirty-four thousand, nine hundred eighty-nine".

Divisors: 1 211 63199 13334989