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13144465 = 531137619
BaseRepresentation
bin110010001001…
…000110010001
3220201210211001
4302021012101
511331110330
61145422001
7216504025
oct62110621
926653731
1013144465
1174686a4
12449a901
132952bb9
141a62385
1512499ca
hexc89191

13144465 has 16 divisors (see below), whose sum is σ = 16427520. Its totient is φ = 10085760.

The previous prime is 13144459. The next prime is 13144487. The reversal of 13144465 is 56444131.

13144465 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13144465 - 211 = 13142417 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20926 + ... + 21544.

It is an arithmetic number, because the mean of its divisors is an integer number (1026720).

Almost surely, 213144465 is an apocalyptic number.

It is an amenable number.

13144465 is a deficient number, since it is larger than the sum of its proper divisors (3283055).

13144465 is a wasteful number, since it uses less digits than its factorization.

13144465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 792.

The product of its digits is 5760, while the sum is 28.

The square root of 13144465 is about 3625.5296164836. The cubic root of 13144465 is about 236.0012508313.

Adding to 13144465 its reverse (56444131), we get a palindrome (69588596).

The spelling of 13144465 in words is "thirteen million, one hundred forty-four thousand, four hundred sixty-five".

Divisors: 1 5 31 137 155 619 685 3095 4247 19189 21235 84803 95945 424015 2628893 13144465