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64360071 = 3223929921
BaseRepresentation
bin1111010110000…
…0111010000111
311111002211102100
43311200322013
5112434010241
610215243143
71411023456
oct365407207
9144084370
1064360071
1133369746
12196794b3
13104456a9
148794b9d
1559b49b6
hex3d60e87

64360071 has 12 divisors (see below), whose sum is σ = 93356640. Its totient is φ = 42725760.

The previous prime is 64360067. The next prime is 64360111. The reversal of 64360071 is 17006346.

It is not a de Polignac number, because 64360071 - 22 = 64360067 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64362071) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12810 + ... + 17111.

It is an arithmetic number, because the mean of its divisors is an integer number (7779720).

Almost surely, 264360071 is an apocalyptic number.

64360071 is a deficient number, since it is larger than the sum of its proper divisors (28996569).

64360071 is a wasteful number, since it uses less digits than its factorization.

64360071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30166 (or 30163 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 64360071 is about 8022.4728731233. The cubic root of 64360071 is about 400.7487454926.

The spelling of 64360071 in words is "sixty-four million, three hundred sixty thousand, seventy-one".

Divisors: 1 3 9 239 717 2151 29921 89763 269289 7151119 21453357 64360071