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64385948 = 22117918523
BaseRepresentation
bin1111010110011…
…1001110011100
311111011010220202
43311213032130
5112440322243
610220003032
71411162064
oct365471634
9144133822
1064385948
1133387130
1219690478
13104543c3
1487a03a4
1559bc4b8
hex3d6739c

64385948 has 24 divisors (see below), whose sum is σ = 124481280. Its totient is φ = 28894320.

The previous prime is 64385941. The next prime is 64385969. The reversal of 64385948 is 84958346.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64385941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5786 + ... + 12737.

It is an arithmetic number, because the mean of its divisors is an integer number (5186720).

Almost surely, 264385948 is an apocalyptic number.

It is an amenable number.

64385948 is a deficient number, since it is larger than the sum of its proper divisors (60095332).

64385948 is a wasteful number, since it uses less digits than its factorization.

64385948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18617 (or 18615 counting only the distinct ones).

The product of its digits is 829440, while the sum is 47.

The square root of 64385948 is about 8024.0854930640. The cubic root of 64385948 is about 400.8024474521.

The spelling of 64385948 in words is "sixty-four million, three hundred eighty-five thousand, nine hundred forty-eight".

Divisors: 1 2 4 11 22 44 79 158 316 869 1738 3476 18523 37046 74092 203753 407506 815012 1463317 2926634 5853268 16096487 32192974 64385948