Base | Representation |
---|---|
bin | 110010010101… |
… | …111110011101 |
3 | 220211111011200 |
4 | 302111332131 |
5 | 11334302323 |
6 | 1150510113 |
7 | 220113561 |
oct | 62257635 |
9 | 26744150 |
10 | 13197213 |
11 | 74a4297 |
12 | 4505339 |
13 | 2970c03 |
14 | 1a776a1 |
15 | 125a443 |
hex | c95f9d |
13197213 has 12 divisors (see below), whose sum is σ = 19108128. Its totient is φ = 8777160.
The previous prime is 13197209. The next prime is 13197241. The reversal of 13197213 is 31279131.
It is not a de Polignac number, because 13197213 - 22 = 13197209 is a prime.
It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (13197293) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2878 + ... + 5888.
It is an arithmetic number, because the mean of its divisors is an integer number (1592344).
Almost surely, 213197213 is an apocalyptic number.
It is an amenable number.
13197213 is a deficient number, since it is larger than the sum of its proper divisors (5910915).
13197213 is a wasteful number, since it uses less digits than its factorization.
13197213 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3504 (or 3501 counting only the distinct ones).
The product of its digits is 1134, while the sum is 27.
The square root of 13197213 is about 3632.7968564179. The cubic root of 13197213 is about 236.3165160821.
It can be divided in two parts, 131 and 97213, that added together give a square (97344 = 3122).
The spelling of 13197213 in words is "thirteen million, one hundred ninety-seven thousand, two hundred thirteen".
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