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12448125 = 32542213
BaseRepresentation
bin101111011111…
…000101111101
3212102102121200
4233133011331
511141320000
61122450113
7210543624
oct57370575
925372550
1012448125
117032508
124203939
13276ac71
1419206bb
15115d500
hexbdf17d

12448125 has 30 divisors (see below), whose sum is σ = 22478742. Its totient is φ = 6636000.

The previous prime is 12448099. The next prime is 12448151. The reversal of 12448125 is 52184421.

It is an interprime number because it is at equal distance from previous prime (12448099) and next prime (12448151).

It can be written as a sum of positive squares in 5 ways, for example, as 1279161 + 11168964 = 1131^2 + 3342^2 .

It is not a de Polignac number, because 12448125 - 26 = 12448061 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 4519 + ... + 6731.

Almost surely, 212448125 is an apocalyptic number.

12448125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12448125 is a deficient number, since it is larger than the sum of its proper divisors (10030617).

12448125 is an equidigital number, since it uses as much as digits as its factorization.

12448125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2239 (or 2221 counting only the distinct ones).

The product of its digits is 2560, while the sum is 27.

The square root of 12448125 is about 3528.1900459017. The cubic root of 12448125 is about 231.7579533164.

The spelling of 12448125 in words is "twelve million, four hundred forty-eight thousand, one hundred twenty-five".

Divisors: 1 3 5 9 15 25 45 75 125 225 375 625 1125 1875 2213 5625 6639 11065 19917 33195 55325 99585 165975 276625 497925 829875 1383125 2489625 4149375 12448125