Search a number
-
+
768325809 = 32511020353
BaseRepresentation
bin101101110010111…
…011100010110001
31222112201222212110
4231302323202301
53033142411214
6204123515533
725016442636
oct5562734261
91875658773
10768325809
11364777609
12195388ba9
13c3242b74
147408218d
15476bc159
hex2dcbb8b1

768325809 has 8 divisors (see below), whose sum is σ = 1028516832. Its totient is φ = 510176000.

The previous prime is 768325799. The next prime is 768325823. The reversal of 768325809 is 908523867.

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

It is a cyclic number.

It is not a de Polignac number, because 768325809 - 211 = 768323761 is a prime.

It is not an unprimeable number, because it can be changed into a prime (768325889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 509424 + ... + 510929.

It is an arithmetic number, because the mean of its divisors is an integer number (128564604).

Almost surely, 2768325809 is an apocalyptic number.

It is an amenable number.

768325809 is a deficient number, since it is larger than the sum of its proper divisors (260191023).

768325809 is a wasteful number, since it uses less digits than its factorization.

768325809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1020607.

The product of its (nonzero) digits is 725760, while the sum is 48.

The square root of 768325809 is about 27718.6906076027. The cubic root of 768325809 is about 915.9008751104.

The spelling of 768325809 in words is "seven hundred sixty-eight million, three hundred twenty-five thousand, eight hundred nine".

Divisors: 1 3 251 753 1020353 3061059 256108603 768325809