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725830 = 25710369
BaseRepresentation
bin10110001001101000110
31100212122121
42301031012
5141211310
623320154
76112060
oct2611506
91325577
10725830
11456366
122b005a
131c54b1
1414c730
15e50da
hexb1346

725830 has 16 divisors (see below), whose sum is σ = 1493280. Its totient is φ = 248832.

The previous prime is 725827. The next prime is 725861. The reversal of 725830 is 38527.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 725795 and 725804.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5115 + ... + 5254.

It is an arithmetic number, because the mean of its divisors is an integer number (93330).

2725830 is an apocalyptic number.

725830 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

725830 is an abundant number, since it is smaller than the sum of its proper divisors (767450).

It is a weird number, because it is abundant, but not a pseudoperfect number.

725830 is a wasteful number, since it uses less digits than its factorization.

725830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10383.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 725830 is about 851.9565716631. The cubic root of 725830 is about 89.8693577792.

The spelling of 725830 in words is "seven hundred twenty-five thousand, eight hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 10369 20738 51845 72583 103690 145166 362915 725830