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12195125 = 5397561
BaseRepresentation
bin101110100001…
…010100110101
3211221120120022
4232201110311
511110221000
61113214525
7205441205
oct56412465
924846508
1012195125
11697a418
124101445
1326aca67
141896405
15110d585
hexba1535

12195125 has 8 divisors (see below), whose sum is σ = 15219672. Its totient is φ = 9756000.

The previous prime is 12195077. The next prime is 12195149. The reversal of 12195125 is 52159121.

12195125 is digitally balanced in base 2, 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 4 ways, for example, as 2745649 + 9449476 = 1657^2 + 3074^2 .

It is not a de Polignac number, because 12195125 - 210 = 12194101 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12195094 and 12195103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48656 + ... + 48905.

It is an arithmetic number, because the mean of its divisors is an integer number (1902459).

Almost surely, 212195125 is an apocalyptic number.

It is an amenable number.

12195125 is a deficient number, since it is larger than the sum of its proper divisors (3024547).

12195125 is an frugal number, since it uses more digits than its factorization.

12195125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97576 (or 97566 counting only the distinct ones).

The product of its digits is 900, while the sum is 26.

The square root of 12195125 is about 3492.1519153668. The cubic root of 12195125 is about 230.1770847934.

The spelling of 12195125 in words is "twelve million, one hundred ninety-five thousand, one hundred twenty-five".

Divisors: 1 5 25 125 97561 487805 2439025 12195125