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725741 = 3141571
BaseRepresentation
bin10110001001011101101
31100212112022
42301023231
5141210431
623315525
76111602
oct2611355
91325468
10725741
11456295
122abba5
131c5443
1414c6a9
15e507b
hexb12ed

725741 has 8 divisors (see below), whose sum is σ = 768768. Its totient is φ = 684000.

The previous prime is 725737. The next prime is 725749. The reversal of 725741 is 147527.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 725741 - 22 = 725737 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 725741.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 986 + ... + 1556.

It is an arithmetic number, because the mean of its divisors is an integer number (96096).

2725741 is an apocalyptic number.

It is an amenable number.

725741 is a deficient number, since it is larger than the sum of its proper divisors (43027).

725741 is a wasteful number, since it uses less digits than its factorization.

725741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 643.

The product of its digits is 1960, while the sum is 26.

The square root of 725741 is about 851.9043373525. The cubic root of 725741 is about 89.8656844214.

The spelling of 725741 in words is "seven hundred twenty-five thousand, seven hundred forty-one".

Divisors: 1 31 41 571 1271 17701 23411 725741