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725525472 = 25371079651
BaseRepresentation
bin101011001111101…
…010001111100000
31212120012111211210
4223033222033200
52441213303342
6155554310120
723656602420
oct5317521740
91776174753
10725525472
113425a4031
12182b88340
13b7408819
146c500480
1543a6579c
hex2b3ea3e0

725525472 has 48 divisors (see below), whose sum is σ = 2176578432. Its totient is φ = 207292800.

The previous prime is 725525467. The next prime is 725525477. The reversal of 725525472 is 274525527.

It is an interprime number because it is at equal distance from previous prime (725525467) and next prime (725525477).

It is a tau number, because it is divible by the number of its divisors (48).

It is a self number, because there is not a number n which added to its sum of digits gives 725525472.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725525477) 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, 539154 + ... + 540497.

It is an arithmetic number, because the mean of its divisors is an integer number (45345384).

Almost surely, 2725525472 is an apocalyptic number.

It is an amenable number.

725525472 is an abundant number, since it is smaller than the sum of its proper divisors (1451052960).

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

725525472 is a wasteful number, since it uses less digits than its factorization.

725525472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1079671 (or 1079663 counting only the distinct ones).

The product of its digits is 196000, while the sum is 39.

The square root of 725525472 is about 26935.5800383062. The cubic root of 725525472 is about 898.5678754276.

The spelling of 725525472 in words is "seven hundred twenty-five million, five hundred twenty-five thousand, four hundred seventy-two".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 84 96 112 168 224 336 672 1079651 2159302 3238953 4318604 6477906 7557557 8637208 12955812 15115114 17274416 22672671 25911624 30230228 34548832 45345342 51823248 60460456 90690684 103646496 120920912 181381368 241841824 362762736 725525472