Base | Representation |
---|---|
bin | 110010101000… |
… | …011001000001 |
3 | 220222022122022 |
4 | 302220121001 |
5 | 11344211031 |
6 | 1152251225 |
7 | 220546514 |
oct | 62503101 |
9 | 26868568 |
10 | 13272641 |
11 | 7545a28 |
12 | 4540b15 |
13 | 2999345 |
14 | 1a96d7b |
15 | 127297b |
hex | ca8641 |
13272641 has 8 divisors (see below), whose sum is σ = 13581960. Its totient is φ = 12966912.
The previous prime is 13272617. The next prime is 13272673. The reversal of 13272641 is 14627231.
It can be written as a sum of positive squares in 4 ways, for example, as 2190400 + 11082241 = 1480^2 + 3329^2 .
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 13272641 - 26 = 13272577 is a prime.
It is a super-2 number, since 2×132726412 = 352325998229762, which contains 22 as substring.
It is a Duffinian number.
It is a Curzon number.
It is a nialpdrome in base 16.
It is a self number, because there is not a number n which added to its sum of digits gives 13272641.
It is not an unprimeable number, because it can be changed into a prime (13272341) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7445 + ... + 9053.
It is an arithmetic number, because the mean of its divisors is an integer number (1697745).
Almost surely, 213272641 is an apocalyptic number.
It is an amenable number.
13272641 is a deficient number, since it is larger than the sum of its proper divisors (309319).
13272641 is a wasteful number, since it uses less digits than its factorization.
13272641 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1795.
The product of its digits is 2016, while the sum is 26.
The square root of 13272641 is about 3643.1635977540. The cubic root of 13272641 is about 236.7658794067.
Adding to 13272641 its reverse (14627231), we get a palindrome (27899872).
The spelling of 13272641 in words is "thirteen million, two hundred seventy-two thousand, six hundred forty-one".
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