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12372125 = 53293413
BaseRepresentation
bin101111001100…
…100010011101
3212021120100212
4233030202131
511131402000
61121102205
7210106223
oct57144235
925246325
1012372125
116a903a7
124187965
1327424ac
141900b13
151145c35
hexbcc89d

12372125 has 16 divisors (see below), whose sum is σ = 15977520. Its totient is φ = 9553600.

The previous prime is 12372121. The next prime is 12372127. The reversal of 12372125 is 52127321.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 1229881 + 11142244 = 1109^2 + 3338^2 .

It is not a de Polignac number, because 12372125 - 22 = 12372121 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12372125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12372121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1919 + ... + 5331.

It is an arithmetic number, because the mean of its divisors is an integer number (998595).

Almost surely, 212372125 is an apocalyptic number.

It is an amenable number.

12372125 is a deficient number, since it is larger than the sum of its proper divisors (3605395).

12372125 is an equidigital number, since it uses as much as digits as its factorization.

12372125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3457 (or 3447 counting only the distinct ones).

The product of its digits is 840, while the sum is 23.

The square root of 12372125 is about 3517.4031614246. The cubic root of 12372125 is about 231.2853366989.

Adding to 12372125 its reverse (52127321), we get a palindrome (64499446).

The spelling of 12372125 in words is "twelve million, three hundred seventy-two thousand, one hundred twenty-five".

Divisors: 1 5 25 29 125 145 725 3413 3625 17065 85325 98977 426625 494885 2474425 12372125