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64513070 = 256451307
BaseRepresentation
bin1111011000011…
…0010000101110
311111101121021222
43312012100232
5113003404240
610222423342
71412231516
oct366062056
9144347258
1064513070
1133463696
1219731b52
131049a21b
1487d4846
1559e4eb5
hex3d8642e

64513070 has 8 divisors (see below), whose sum is σ = 116123544. Its totient is φ = 25805224.

The previous prime is 64513069. The next prime is 64513073. The reversal of 64513070 is 7031546.

64513070 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64513073) 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 3 ways as a sum of consecutive naturals, for example, 3225644 + ... + 3225663.

It is an arithmetic number, because the mean of its divisors is an integer number (14515443).

Almost surely, 264513070 is an apocalyptic number.

64513070 is a deficient number, since it is larger than the sum of its proper divisors (51610474).

64513070 is a wasteful number, since it uses less digits than its factorization.

64513070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6451314.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 64513070 is about 8032.0028635453. The cubic root of 64513070 is about 401.0660521414.

The spelling of 64513070 in words is "sixty-four million, five hundred thirteen thousand, seventy".

Divisors: 1 2 5 10 6451307 12902614 32256535 64513070