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231125 = 53432
BaseRepresentation
bin111000011011010101
3102202001012
4320123111
524344000
64542005
71651556
oct703325
9382035
10231125
11148714
12b1905
138127b
146032d
1548735
hex386d5

231125 has 12 divisors (see below), whose sum is σ = 295308. Its totient is φ = 180600.

The previous prime is 231109. The next prime is 231131. The reversal of 231125 is 521132.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 7396 + 223729 = 86^2 + 473^2 .

It is not a de Polignac number, because 231125 - 24 = 231109 is a prime.

It is a Duffinian 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, 5354 + ... + 5396.

It is an arithmetic number, because the mean of its divisors is an integer number (24609).

2231125 is an apocalyptic number.

231125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

231125 is a deficient number, since it is larger than the sum of its proper divisors (64183).

231125 is an frugal number, since it uses more digits than its factorization.

231125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101 (or 48 counting only the distinct ones).

The product of its digits is 60, while the sum is 14.

The square root of 231125 is about 480.7546151625. The cubic root of 231125 is about 61.3689898476.

Adding to 231125 its reverse (521132), we get a palindrome (752257).

It can be divided in two parts, 2311 and 25, that multiplied together give a palindrome (57775).

The spelling of 231125 in words is "two hundred thirty-one thousand, one hundred twenty-five".

Divisors: 1 5 25 43 125 215 1075 1849 5375 9245 46225 231125