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7125725 = 52594831
BaseRepresentation
bin11011001011101011011101
3111102000122202
4123023223131
53311010400
6412421245
7114365465
oct33135335
914360582
107125725
114027732
122477825
131626509
14d36ba5
1595b4d5
hex6cbadd

7125725 has 12 divisors (see below), whose sum is σ = 8987520. Its totient is φ = 5602800.

The previous prime is 7125707. The next prime is 7125731. The reversal of 7125725 is 5275217.

7125725 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 7125725 - 26 = 7125661 is a prime.

Its product of digits (4900) is a multiple of the sum of its prime factors (4900).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 941 + ... + 3890.

It is an arithmetic number, because the mean of its divisors is an integer number (748960).

Almost surely, 27125725 is an apocalyptic number.

It is an amenable number.

7125725 is a deficient number, since it is larger than the sum of its proper divisors (1861795).

7125725 is a wasteful number, since it uses less digits than its factorization.

7125725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4900 (or 4895 counting only the distinct ones).

The product of its digits is 4900, while the sum is 29.

The square root of 7125725 is about 2669.4053644960. The cubic root of 7125725 is about 192.4315830403.

The spelling of 7125725 in words is "seven million, one hundred twenty-five thousand, seven hundred twenty-five".

Divisors: 1 5 25 59 295 1475 4831 24155 120775 285029 1425145 7125725