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64034780 = 22511632753
BaseRepresentation
bin1111010001000…
…1011111011100
311110111022012112
43310101133130
5112343103110
610204253152
71405200215
oct364213734
9143438175
1064034780
1133167307
12195411b8
1310360604
14870c40c
15594d405
hex3d117dc

64034780 has 24 divisors (see below), whose sum is σ = 134637552. Its totient is φ = 25582592.

The previous prime is 64034771. The next prime is 64034833. The reversal of 64034780 is 8743046.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21884 + ... + 24636.

It is an arithmetic number, because the mean of its divisors is an integer number (5609898).

Almost surely, 264034780 is an apocalyptic number.

It is an amenable number.

64034780 is an abundant number, since it is smaller than the sum of its proper divisors (70602772).

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

64034780 is a wasteful number, since it uses less digits than its factorization.

64034780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3925 (or 3923 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 64034780 is about 8002.1734547559. The cubic root of 64034780 is about 400.0724452118.

The spelling of 64034780 in words is "sixty-four million, thirty-four thousand, seven hundred eighty".

Divisors: 1 2 4 5 10 20 1163 2326 2753 4652 5506 5815 11012 11630 13765 23260 27530 55060 3201739 6403478 12806956 16008695 32017390 64034780