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725252860 = 22536262643
BaseRepresentation
bin101011001110100…
…111101011111100
31212112200122220001
4223032213223330
52441131042420
6155544404044
723654355553
oct5316475374
91775618801
10725252860
11342428232
12182a76624
13b7341707
146c46cd9a
1543a0eb0a
hex2b3a7afc

725252860 has 12 divisors (see below), whose sum is σ = 1523031048. Its totient is φ = 290101136.

The previous prime is 725252837. The next prime is 725252893. The reversal of 725252860 is 68252527.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18131302 + ... + 18131341.

It is an arithmetic number, because the mean of its divisors is an integer number (126919254).

Almost surely, 2725252860 is an apocalyptic number.

It is an amenable number.

725252860 is an abundant number, since it is smaller than the sum of its proper divisors (797778188).

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

725252860 is a wasteful number, since it uses less digits than its factorization.

725252860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36262652 (or 36262650 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 37.

The square root of 725252860 is about 26930.5191186505. The cubic root of 725252860 is about 898.4553174347.

The spelling of 725252860 in words is "seven hundred twenty-five million, two hundred fifty-two thousand, eight hundred sixty".

Divisors: 1 2 4 5 10 20 36262643 72525286 145050572 181313215 362626430 725252860