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12387325 = 52641773
BaseRepresentation
bin101111010000…
…001111111101
3212022100012211
4233100033331
511132343300
61121300421
7210201436
oct57201775
925270184
1012387325
116aa0865
124194711
1327493a2
14190648d
15114a4ba
hexbd03fd

12387325 has 12 divisors (see below), whose sum is σ = 15404148. Its totient is φ = 9881600.

The previous prime is 12387313. The next prime is 12387329. The reversal of 12387325 is 52378321.

It can be written as a sum of positive squares in 6 ways, for example, as 367236 + 12020089 = 606^2 + 3467^2 .

It is not a de Polignac number, because 12387325 - 25 = 12387293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12387329) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15639 + ... + 16411.

It is an arithmetic number, because the mean of its divisors is an integer number (1283679).

Almost surely, 212387325 is an apocalyptic number.

It is an amenable number.

12387325 is a deficient number, since it is larger than the sum of its proper divisors (3016823).

12387325 is an equidigital number, since it uses as much as digits as its factorization.

12387325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1424 (or 1419 counting only the distinct ones).

The product of its digits is 10080, while the sum is 31.

The square root of 12387325 is about 3519.5631831237. The cubic root of 12387325 is about 231.3800145441.

The spelling of 12387325 in words is "twelve million, three hundred eighty-seven thousand, three hundred twenty-five".

Divisors: 1 5 25 641 773 3205 3865 16025 19325 495493 2477465 12387325