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625085 = 5125017
BaseRepresentation
bin10011000100110111101
31011202110022
42120212331
5130000320
621221525
75212256
oct2304675
91152408
10625085
113976aa
122618a5
1318b696
14123b2d
15c5325
hex989bd

625085 has 4 divisors (see below), whose sum is σ = 750108. Its totient is φ = 500064.

The previous prime is 625063. The next prime is 625087. The reversal of 625085 is 580526.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 109561 + 515524 = 331^2 + 718^2 .

It is a cyclic number.

It is not a de Polignac number, because 625085 - 28 = 624829 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (625087) 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 3 ways as a sum of consecutive naturals, for example, 62504 + ... + 62513.

It is an arithmetic number, because the mean of its divisors is an integer number (187527).

2625085 is an apocalyptic number.

It is an amenable number.

625085 is a deficient number, since it is larger than the sum of its proper divisors (125023).

625085 is a wasteful number, since it uses less digits than its factorization.

625085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125022.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 625085 is about 790.6231719346. The cubic root of 625085 is about 85.5026731036.

The spelling of 625085 in words is "six hundred twenty-five thousand, eighty-five".

Divisors: 1 5 125017 625085