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13064645 = 511298191
BaseRepresentation
bin110001110101…
…100111000101
3220120202022202
4301311213011
511321032040
61144004245
7216022226
oct61654705
926522282
1013064645
117413730
124460685
132925779
141a4124d
151231015
hexc759c5

13064645 has 16 divisors (see below), whose sum is σ = 17694720. Its totient is φ = 9172800.

The previous prime is 13064641. The next prime is 13064657. The reversal of 13064645 is 54646031.

It is a happy number.

It is not a de Polignac number, because 13064645 - 22 = 13064641 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13064641) 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 15 ways as a sum of consecutive naturals, for example, 2501 + ... + 5690.

It is an arithmetic number, because the mean of its divisors is an integer number (1105920).

Almost surely, 213064645 is an apocalyptic number.

It is an amenable number.

13064645 is a deficient number, since it is larger than the sum of its proper divisors (4630075).

13064645 is a wasteful number, since it uses less digits than its factorization.

13064645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8236.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 13064645 is about 3614.5048070241. The cubic root of 13064645 is about 235.5225733145.

The spelling of 13064645 in words is "thirteen million, sixty-four thousand, six hundred forty-five".

Divisors: 1 5 11 29 55 145 319 1595 8191 40955 90101 237539 450505 1187695 2612929 13064645