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13144799 = 234313291
BaseRepresentation
bin110010001001…
…001011011111
3220201211021102
4302021023133
511331113144
61145423315
7216505013
oct62111337
926654242
1013144799
117468978
12449ab3b
1329530b5
141a62543
151249b4e
hexc892df

13144799 has 8 divisors (see below), whose sum is σ = 14036352. Its totient is φ = 12279960.

The previous prime is 13144783. The next prime is 13144823. The reversal of 13144799 is 99744131.

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 13144799 - 24 = 13144783 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 (13144709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5657 + ... + 7634.

It is an arithmetic number, because the mean of its divisors is an integer number (1754544).

Almost surely, 213144799 is an apocalyptic number.

13144799 is a deficient number, since it is larger than the sum of its proper divisors (891553).

13144799 is a wasteful number, since it uses less digits than its factorization.

13144799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13357.

The product of its digits is 27216, while the sum is 38.

The square root of 13144799 is about 3625.5756784268. The cubic root of 13144799 is about 236.0032497398.

The spelling of 13144799 in words is "thirteen million, one hundred forty-four thousand, seven hundred ninety-nine".

Divisors: 1 23 43 989 13291 305693 571513 13144799