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12679450 = 2527172131
BaseRepresentation
bin110000010111…
…100100011010
3212212011221021
4300113210122
511221220300
61131433054
7212526220
oct60274432
925764837
1012679450
117180293
1242b578a
13281c344
141980b10
1511a6d1a
hexc1791a

12679450 has 48 divisors (see below), whose sum is σ = 28551744. Its totient is φ = 4089600.

The previous prime is 12679427. The next prime is 12679451. The reversal of 12679450 is 5497621.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (12679451) 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 23 ways as a sum of consecutive naturals, for example, 4885 + ... + 7015.

It is an arithmetic number, because the mean of its divisors is an integer number (594828).

Almost surely, 212679450 is an apocalyptic number.

12679450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12679450 is an abundant number, since it is smaller than the sum of its proper divisors (15872294).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12679450 is a wasteful number, since it uses less digits than its factorization.

12679450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2167 (or 2162 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 12679450 is about 3560.8215344215. The cubic root of 12679450 is about 233.1847466699.

The spelling of 12679450 in words is "twelve million, six hundred seventy-nine thousand, four hundred fifty".

Divisors: 1 2 5 7 10 14 17 25 34 35 50 70 85 119 170 175 238 350 425 595 850 1190 2131 2975 4262 5950 10655 14917 21310 29834 36227 53275 72454 74585 106550 149170 181135 253589 362270 372925 507178 745850 905675 1267945 1811350 2535890 6339725 12679450