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11925 = 325253
BaseRepresentation
bin10111010010101
3121100200
42322111
5340200
6131113
746524
oct27225
917320
1011925
118a61
126a99
135574
1444bb
153800
hex2e95

11925 has 18 divisors (see below), whose sum is σ = 21762. Its totient is φ = 6240.

The previous prime is 11923. The next prime is 11927. The reversal of 11925 is 52911.

11925 = 45 + 55 + 65.

It is an interprime number because it is at equal distance from previous prime (11923) and next prime (11927).

It can be written as a sum of positive squares in 3 ways, for example, as 1521 + 10404 = 39^2 + 102^2 .

It is not a de Polignac number, because 11925 - 21 = 11923 is a prime.

It is an Ulam number.

It is a plaindrome in base 14.

It is a zygodrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 11898 and 11907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11923) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 199 + ... + 251.

It is an arithmetic number, because the mean of its divisors is an integer number (1209).

211925 is an apocalyptic number.

11925 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11925 is a deficient number, since it is larger than the sum of its proper divisors (9837).

11925 is a wasteful number, since it uses less digits than its factorization.

11925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69 (or 61 counting only the distinct ones).

The product of its digits is 90, while the sum is 18.

The square root of 11925 is about 109.2016483392. The cubic root of 11925 is about 22.8464887103.

It can be divided in two parts, 119 and 25, that added together give a square (144 = 122).

The spelling of 11925 in words is "eleven thousand, nine hundred twenty-five".

Divisors: 1 3 5 9 15 25 45 53 75 159 225 265 477 795 1325 2385 3975 11925