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764425660 = 22569155313
BaseRepresentation
bin101101100100000…
…011010110111100
31222021101211212111
4231210003112330
53031143110120
6203504143404
724641340145
oct5544032674
91867354774
10764425660
11362553349
12194007b64
13c24a889b
1473748acc
154719b75a
hex2d9035bc

764425660 has 24 divisors (see below), whose sum is σ = 1607646096. Its totient is φ = 305322240.

The previous prime is 764425637. The next prime is 764425667. The reversal of 764425660 is 66524467.

764425660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (764425667) 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, 13837 + ... + 41476.

It is an arithmetic number, because the mean of its divisors is an integer number (66985254).

Almost surely, 2764425660 is an apocalyptic number.

It is an amenable number.

764425660 is an abundant number, since it is smaller than the sum of its proper divisors (843220436).

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

764425660 is a wasteful number, since it uses less digits than its factorization.

764425660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56013 (or 56011 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 40.

The square root of 764425660 is about 27648.2487691355. The cubic root of 764425660 is about 914.3484905975.

The spelling of 764425660 in words is "seven hundred sixty-four million, four hundred twenty-five thousand, six hundred sixty".

Divisors: 1 2 4 5 10 20 691 1382 2764 3455 6910 13820 55313 110626 221252 276565 553130 1106260 38221283 76442566 152885132 191106415 382212830 764425660