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13044155 = 511323087
BaseRepresentation
bin110001110000…
…100110111011
3220112201012212
4301300212323
511314403110
61143325335
7215605415
oct61604673
926481185
1013044155
1173aa2a3
12445084b
132919347
141a379b5
151229e05
hexc709bb

13044155 has 8 divisors (see below), whose sum is σ = 15792192. Its totient is φ = 10342528.

The previous prime is 13044137. The next prime is 13044169. The reversal of 13044155 is 55144031.

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 13044155 - 212 = 13040059 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13044155.

It is an unprimeable number.

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, 10979 + ... + 12108.

It is an arithmetic number, because the mean of its divisors is an integer number (1974024).

Almost surely, 213044155 is an apocalyptic number.

13044155 is a deficient number, since it is larger than the sum of its proper divisors (2748037).

13044155 is a wasteful number, since it uses less digits than its factorization.

13044155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23205.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 13044155 is about 3611.6692816480. The cubic root of 13044155 is about 235.3993812284.

Adding to 13044155 its reverse (55144031), we get a palindrome (68188186).

The spelling of 13044155 in words is "thirteen million, forty-four thousand, one hundred fifty-five".

Divisors: 1 5 113 565 23087 115435 2608831 13044155