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725263460 = 2251491991223
BaseRepresentation
bin101011001110101…
…010010001100100
31212112201012102122
4223032222101210
52441131412320
6155544525112
723654431505
oct5316522144
91775635378
10725263460
11342435199
12182a80798
13b734649c
146c472bac
1543a12d25
hex2b3aa464

725263460 has 48 divisors (see below), whose sum is σ = 1542240000. Its totient is φ = 286475904.

The previous prime is 725263457. The next prime is 725263463. The reversal of 725263460 is 64362527.

It is an interprime number because it is at equal distance from previous prime (725263457) and next prime (725263463).

It is a super-2 number, since 2×7252634602 = 1052014172822343200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 725263460.

It is not an unprimeable number, because it can be changed into a prime (725263463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 592409 + ... + 593631.

It is an arithmetic number, because the mean of its divisors is an integer number (32130000).

Almost surely, 2725263460 is an apocalyptic number.

It is an amenable number.

725263460 is an abundant number, since it is smaller than the sum of its proper divisors (816976540).

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

725263460 is a wasteful number, since it uses less digits than its factorization.

725263460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1580 (or 1578 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 35.

The square root of 725263460 is about 26930.7159206732. The cubic root of 725263460 is about 898.4596945655.

The spelling of 725263460 in words is "seven hundred twenty-five million, two hundred sixty-three thousand, four hundred sixty".

Divisors: 1 2 4 5 10 20 149 199 298 398 596 745 796 995 1223 1490 1990 2446 2980 3980 4892 6115 12230 24460 29651 59302 118604 148255 182227 243377 296510 364454 486754 593020 728908 911135 973508 1216885 1822270 2433770 3644540 4867540 36263173 72526346 145052692 181315865 362631730 725263460