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725234304 = 2735413491
BaseRepresentation
bin101011001110100…
…011001010000000
31212112122201102210
4223032203022000
52441124444204
6155544142120
723654250504
oct5316431200
91775581383
10725234304
113424152a3
12182a67940
13b7336132
146c466304
1543a09389
hex2b3a3280

725234304 has 64 divisors (see below), whose sum is σ = 1930517280. Its totient is φ = 241228800.

The previous prime is 725234303. The next prime is 725234309. The reversal of 725234304 is 403432527.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (725234303) 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, 205999 + ... + 209489.

Almost surely, 2725234304 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 725234304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (965258640).

725234304 is an abundant number, since it is smaller than the sum of its proper divisors (1205282976).

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

725234304 is a wasteful number, since it uses less digits than its factorization.

725234304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4049 (or 4037 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 30.

The square root of 725234304 is about 26930.1746002509. The cubic root of 725234304 is about 898.4476548754.

The spelling of 725234304 in words is "seven hundred twenty-five million, two hundred thirty-four thousand, three hundred four".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 64 96 128 192 384 541 1082 1623 2164 3246 3491 4328 6492 6982 8656 10473 12984 13964 17312 20946 25968 27928 34624 41892 51936 55856 69248 83784 103872 111712 167568 207744 223424 335136 446848 670272 1340544 1888631 3777262 5665893 7554524 11331786 15109048 22663572 30218096 45327144 60436192 90654288 120872384 181308576 241744768 362617152 725234304