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12306625 = 5398453
BaseRepresentation
bin101110111100…
…100011000001
3212011020111221
4232330203001
511122303000
61115435041
7206414242
oct56744301
925136457
1012306625
116a46171
124155a81
13271b736
1418c4cc9
15113161a
hexbbc8c1

12306625 has 8 divisors (see below), whose sum is σ = 15358824. Its totient is φ = 9845200.

The previous prime is 12306599. The next prime is 12306629. The reversal of 12306625 is 52660321.

12306625 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 147456 + 12159169 = 384^2 + 3487^2 .

It is not a de Polignac number, because 12306625 - 211 = 12304577 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12306625.

It is not an unprimeable number, because it can be changed into a prime (12306629) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49102 + ... + 49351.

It is an arithmetic number, because the mean of its divisors is an integer number (1919853).

Almost surely, 212306625 is an apocalyptic number.

It is an amenable number.

12306625 is a deficient number, since it is larger than the sum of its proper divisors (3052199).

12306625 is an frugal number, since it uses more digits than its factorization.

12306625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98468 (or 98458 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 12306625 is about 3508.0799591800. The cubic root of 12306625 is about 230.8764604943.

Adding to 12306625 its reverse (52660321), we get a palindrome (64966946).

The spelling of 12306625 in words is "twelve million, three hundred six thousand, six hundred twenty-five".

Divisors: 1 5 25 125 98453 492265 2461325 12306625