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6240625 = 551997
BaseRepresentation
bin10111110011100101110001
3102202001112021
4113303211301
53044200000
6341431441
7104021146
oct27634561
912661467
106240625
113582746
12210b581
1313a66a1
14b863cd
1583411a
hex5f3971

6240625 has 12 divisors (see below), whose sum is σ = 7804188. Its totient is φ = 4990000.

The previous prime is 6240589. The next prime is 6240631. The reversal of 6240625 is 5260426.

6240625 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 6155361 + 85264 = 2481^2 + 292^2 .

It is not a de Polignac number, because 6240625 - 213 = 6232433 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

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 6240625.

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, 2127 + ... + 4123.

It is an arithmetic number, because the mean of its divisors is an integer number (650349).

Almost surely, 26240625 is an apocalyptic number.

It is an amenable number.

6240625 is a deficient number, since it is larger than the sum of its proper divisors (1563563).

6240625 is an frugal number, since it uses more digits than its factorization.

6240625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2022 (or 2002 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 6240625 is about 2498.1242963472. The cubic root of 6240625 is about 184.1094280557.

The spelling of 6240625 in words is "six million, two hundred forty thousand, six hundred twenty-five".

Divisors: 1 5 25 125 625 1997 3125 9985 49925 249625 1248125 6240625