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12258725 = 52598311
BaseRepresentation
bin101110110000…
…110110100101
3212001210210212
4232300312211
511114234400
61114425205
7206124503
oct56606645
925053725
1012258725
116a13186
124132205
1327029ab
1418b1673
151122335
hexbb0da5

12258725 has 12 divisors (see below), whose sum is σ = 15460320. Its totient is φ = 9639600.

The previous prime is 12258721. The next prime is 12258731. The reversal of 12258725 is 52785221.

It is a happy number.

It is not a de Polignac number, because 12258725 - 22 = 12258721 is a prime.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 12258691 and 12258700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12258721) 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 11 ways as a sum of consecutive naturals, for example, 2681 + ... + 5630.

It is an arithmetic number, because the mean of its divisors is an integer number (1288360).

Almost surely, 212258725 is an apocalyptic number.

It is an amenable number.

12258725 is a deficient number, since it is larger than the sum of its proper divisors (3201595).

12258725 is an equidigital number, since it uses as much as digits as its factorization.

12258725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8380 (or 8375 counting only the distinct ones).

The product of its digits is 11200, while the sum is 32.

The square root of 12258725 is about 3501.2462067098. The cubic root of 12258725 is about 230.5765309433.

The spelling of 12258725 in words is "twelve million, two hundred fifty-eight thousand, seven hundred twenty-five".

Divisors: 1 5 25 59 295 1475 8311 41555 207775 490349 2451745 12258725