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64012013 = 1323214087
BaseRepresentation
bin1111010000101…
…1111011101101
311110110010222022
43310023323231
5112341341023
610203555525
71405043642
oct364137355
9143403868
1064012013
113315119a
121952bba5
1310353140
148703dc9
1559467c8
hex3d0beed

64012013 has 8 divisors (see below), whose sum is σ = 71933568. Its totient is φ = 56518704.

The previous prime is 64012009. The next prime is 64012033. The reversal of 64012013 is 31021046.

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 64012013 - 22 = 64012009 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 64011982 and 64012000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64012033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106745 + ... + 107342.

It is an arithmetic number, because the mean of its divisors is an integer number (8991696).

Almost surely, 264012013 is an apocalyptic number.

It is an amenable number.

64012013 is a deficient number, since it is larger than the sum of its proper divisors (7921555).

64012013 is a wasteful number, since it uses less digits than its factorization.

64012013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214123.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 64012013 is about 8000.7507772708. The cubic root of 64012013 is about 400.0250255176.

Adding to 64012013 its reverse (31021046), we get a palindrome (95033059).

The spelling of 64012013 in words is "sixty-four million, twelve thousand, thirteen".

Divisors: 1 13 23 299 214087 2783131 4924001 64012013