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13198443 = 3171371889
BaseRepresentation
bin110010010110…
…010001101011
3220211112212020
4302112101223
511334322233
61150515523
7220120266
oct62262153
926745766
1013198443
1174a5205
124505ba3
13297163b
141a77cdd
15125a9b3
hexc9646b

13198443 has 16 divisors (see below), whose sum is σ = 18779040. Its totient is φ = 8216576.

The previous prime is 13198441. The next prime is 13198453. The reversal of 13198443 is 34489131.

13198443 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13198443 - 21 = 13198441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13198441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6043 + ... + 7931.

It is an arithmetic number, because the mean of its divisors is an integer number (1173690).

Almost surely, 213198443 is an apocalyptic number.

13198443 is a deficient number, since it is larger than the sum of its proper divisors (5580597).

13198443 is a wasteful number, since it uses less digits than its factorization.

13198443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2046.

The product of its digits is 10368, while the sum is 33.

The square root of 13198443 is about 3632.9661435251. The cubic root of 13198443 is about 236.3238575384.

The spelling of 13198443 in words is "thirteen million, one hundred ninety-eight thousand, four hundred forty-three".

Divisors: 1 3 17 51 137 411 1889 2329 5667 6987 32113 96339 258793 776379 4399481 13198443