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725270133 = 37172031569
BaseRepresentation
bin101011001110101…
…011111001110101
31212112201112120210
4223032223321311
52441132121013
6155545020033
723654460120
oct5316537165
91775645523
10725270133
1134243a205
12182a84619
13b7349533
146c4753b7
1543a14cc3
hex2b3abe75

725270133 has 16 divisors (see below), whose sum is σ = 1170184320. Its totient is φ = 390061056.

The previous prime is 725270131. The next prime is 725270137. The reversal of 725270133 is 331072527.

It is not a de Polignac number, because 725270133 - 21 = 725270131 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 725270133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725270131) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1015428 + ... + 1016141.

It is an arithmetic number, because the mean of its divisors is an integer number (73136520).

Almost surely, 2725270133 is an apocalyptic number.

It is an amenable number.

725270133 is a deficient number, since it is larger than the sum of its proper divisors (444914187).

725270133 is a wasteful number, since it uses less digits than its factorization.

725270133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2031596.

The product of its (nonzero) digits is 8820, while the sum is 30.

The square root of 725270133 is about 26930.8398123787. The cubic root of 725270133 is about 898.4624500714.

The spelling of 725270133 in words is "seven hundred twenty-five million, two hundred seventy thousand, one hundred thirty-three".

Divisors: 1 3 7 17 21 51 119 357 2031569 6094707 14220983 34536673 42662949 103610019 241756711 725270133