Search a number
-
+
768745925 = 5230749837
BaseRepresentation
bin101101110100100…
…010000111000101
31222120112100011022
4231310202013011
53033244332200
6204140520525
725023142523
oct5564420705
91876470138
10768745925
11364a34212
12195550145
13c335c15c
1474151313
1547751885
hex2dd221c5

768745925 has 6 divisors (see below), whose sum is σ = 953244978. Its totient is φ = 614996720.

The previous prime is 768745889. The next prime is 768745931. The reversal of 768745925 is 529547867.

It can be written as a sum of positive squares in 3 ways, for example, as 66601921 + 702144004 = 8161^2 + 26498^2 .

It is not a de Polignac number, because 768745925 - 28 = 768745669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15374894 + ... + 15374943.

It is an arithmetic number, because the mean of its divisors is an integer number (158874163).

Almost surely, 2768745925 is an apocalyptic number.

It is an amenable number.

768745925 is a deficient number, since it is larger than the sum of its proper divisors (184499053).

768745925 is a wasteful number, since it uses less digits than its factorization.

768745925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30749847 (or 30749842 counting only the distinct ones).

The product of its digits is 4233600, while the sum is 53.

The square root of 768745925 is about 27726.2677798509. The cubic root of 768745925 is about 916.0677810836.

The spelling of 768745925 in words is "seven hundred sixty-eight million, seven hundred forty-five thousand, nine hundred twenty-five".

Divisors: 1 5 25 30749837 153749185 768745925