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623125 = 54997
BaseRepresentation
bin10011000001000010101
31011122202201
42120020111
5124420000
621204501
75203456
oct2301025
91148681
10623125
11396188
12260731
1318a819
1412312d
15c496a
hex98215

623125 has 10 divisors (see below), whose sum is σ = 779438. Its totient is φ = 498000.

The previous prime is 623107. The next prime is 623171. The reversal of 623125 is 521326.

It is a happy number.

It can be written as a sum of positive squares in 5 ways, for example, as 130321 + 492804 = 361^2 + 702^2 .

It is not a de Polignac number, because 623125 - 27 = 622997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 127 + ... + 1123.

2623125 is an apocalyptic number.

It is an amenable number.

623125 is a deficient number, since it is larger than the sum of its proper divisors (156313).

623125 is an frugal number, since it uses more digits than its factorization.

623125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1017 (or 1002 counting only the distinct ones).

The product of its digits is 360, while the sum is 19.

The square root of 623125 is about 789.3826701923. The cubic root of 623125 is about 85.4132128949.

The spelling of 623125 in words is "six hundred twenty-three thousand, one hundred twenty-five".

Divisors: 1 5 25 125 625 997 4985 24925 124625 623125