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64064668 = 22431732153
BaseRepresentation
bin1111010001100…
…0110010011100
311110112211012111
43310120302130
5112400032133
610205043404
71405353313
oct364306234
9143484174
1064064668
1133187808
1219556564
13103710b5
14871927a
1559571cd
hex3d18c9c

64064668 has 24 divisors (see below), whose sum is σ = 115437168. Its totient is φ = 31092096.

The previous prime is 64064659. The next prime is 64064669. The reversal of 64064668 is 86646046.

64064668 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 64064668.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64064669) 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, 28680 + ... + 30832.

It is an arithmetic number, because the mean of its divisors is an integer number (4809882).

Almost surely, 264064668 is an apocalyptic number.

It is an amenable number.

64064668 is a deficient number, since it is larger than the sum of its proper divisors (51372500).

64064668 is a wasteful number, since it uses less digits than its factorization.

64064668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2373 (or 2371 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 40.

The square root of 64064668 is about 8004.0407295316. The cubic root of 64064668 is about 400.1346796484.

The spelling of 64064668 in words is "sixty-four million, sixty-four thousand, six hundred sixty-eight".

Divisors: 1 2 4 43 86 172 173 346 692 2153 4306 7439 8612 14878 29756 92579 185158 370316 372469 744938 1489876 16016167 32032334 64064668