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13813472 = 25431671
BaseRepresentation
bin110100101100…
…011011100000
3221222210112002
4310230123200
512014012342
61212023132
7225261341
oct64543340
927883462
1013813472
1178852a2
124761aa8
132b2856a
141b980c8
15132cd32
hexd2c6e0

13813472 has 12 divisors (see below), whose sum is σ = 27195336. Its totient is φ = 6906720.

The previous prime is 13813463. The next prime is 13813477. The reversal of 13813472 is 27431831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13813477) 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 as a sum of consecutive naturals, namely, 215804 + ... + 215867.

It is an arithmetic number, because the mean of its divisors is an integer number (2266278).

Almost surely, 213813472 is an apocalyptic number.

It is an amenable number.

13813472 is a deficient number, since it is larger than the sum of its proper divisors (13381864).

13813472 is an equidigital number, since it uses as much as digits as its factorization.

13813472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431681 (or 431673 counting only the distinct ones).

The product of its digits is 4032, while the sum is 29.

The square root of 13813472 is about 3716.6479521203. The cubic root of 13813472 is about 239.9390586010.

The spelling of 13813472 in words is "thirteen million, eight hundred thirteen thousand, four hundred seventy-two".

Divisors: 1 2 4 8 16 32 431671 863342 1726684 3453368 6906736 13813472