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12675215 = 57536833
BaseRepresentation
bin110000010110…
…100010001111
3212211222010102
4300112202033
511221101330
61131401315
7212510660
oct60264217
925758112
1012675215
117178093
1242b323b
13281a437
14197d367
1511a5945
hexc1688f

12675215 has 16 divisors (see below), whose sum is σ = 17713728. Its totient is φ = 8526336.

The previous prime is 12675211. The next prime is 12675227. The reversal of 12675215 is 51257621.

It is not a de Polignac number, because 12675215 - 22 = 12675211 is a prime.

It is a super-2 number, since 2×126752152 = 321322150592450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12675211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1562 + ... + 5271.

It is an arithmetic number, because the mean of its divisors is an integer number (1107108).

Almost surely, 212675215 is an apocalyptic number.

12675215 is a deficient number, since it is larger than the sum of its proper divisors (5038513).

12675215 is an equidigital number, since it uses as much as digits as its factorization.

12675215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6898.

The product of its digits is 4200, while the sum is 29.

The square root of 12675215 is about 3560.2268186170. The cubic root of 12675215 is about 233.1587821533.

The spelling of 12675215 in words is "twelve million, six hundred seventy-five thousand, two hundred fifteen".

Divisors: 1 5 7 35 53 265 371 1855 6833 34165 47831 239155 362149 1810745 2535043 12675215