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12949452 = 22323531019
BaseRepresentation
bin110001011001…
…011111001100
3220100220022100
4301121133030
511303340302
61141315100
7215032335
oct61313714
926326270
1012949452
11734512a
124405a90
1328b51c9
141a1128c
15120bd1c
hexc597cc

12949452 has 36 divisors (see below), whose sum is σ = 32858280. Its totient is φ = 4300032.

The previous prime is 12949439. The next prime is 12949463. The reversal of 12949452 is 25494921.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

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, 12199 + ... + 13217.

It is an arithmetic number, because the mean of its divisors is an integer number (912730).

Almost surely, 212949452 is an apocalyptic number.

12949452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12949452 is an abundant number, since it is smaller than the sum of its proper divisors (19908828).

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

12949452 is a wasteful number, since it uses less digits than its factorization.

12949452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1382 (or 1377 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 12949452 is about 3598.5347017918. The cubic root of 12949452 is about 234.8283158284.

The spelling of 12949452 in words is "twelve million, nine hundred forty-nine thousand, four hundred fifty-two".

Divisors: 1 2 3 4 6 9 12 18 36 353 706 1019 1059 1412 2038 2118 3057 3177 4076 4236 6114 6354 9171 12228 12708 18342 36684 359707 719414 1079121 1438828 2158242 3237363 4316484 6474726 12949452