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64064572 = 221113472383
BaseRepresentation
bin1111010001100…
…0110000111100
311110112211001221
43310120300330
5112400031242
610205043124
71405353115
oct364306074
9143484057
1064064572
1133187730
12195564a4
1310371040
14871920c
155957167
hex3d18c3c

64064572 has 48 divisors (see below), whose sum is σ = 134572032. Its totient is φ = 26297280.

The previous prime is 64064563. The next prime is 64064573. The reversal of 64064572 is 27546046.

64064572 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64064573) 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, 25693 + ... + 28075.

It is an arithmetic number, because the mean of its divisors is an integer number (2803584).

Almost surely, 264064572 is an apocalyptic number.

It is an amenable number.

64064572 is an abundant number, since it is smaller than the sum of its proper divisors (70507460).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64064572 is a wasteful number, since it uses less digits than its factorization.

64064572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2458 (or 2456 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 34.

The square root of 64064572 is about 8004.0347325583. The cubic root of 64064572 is about 400.1344797829.

The spelling of 64064572 in words is "sixty-four million, sixty-four thousand, five hundred seventy-two".

Divisors: 1 2 4 11 13 22 26 44 47 52 94 143 188 286 517 572 611 1034 1222 2068 2383 2444 4766 6721 9532 13442 26213 26884 30979 52426 61958 104852 112001 123916 224002 340769 448004 681538 1232011 1363076 1456013 2464022 2912026 4928044 5824052 16016143 32032286 64064572