Base | Representation |
---|---|
bin | 100110110110000111101 |
3 | 2101200002012 |
4 | 10312300331 |
5 | 311213033 |
6 | 43141005 |
7 | 13551026 |
oct | 4666075 |
9 | 2350065 |
10 | 1272893 |
11 | 79a386 |
12 | 514765 |
13 | 3574bb |
14 | 251c4d |
15 | 1a2248 |
hex | 136c3d |
1272893 has 2 divisors, whose sum is σ = 1272894. Its totient is φ = 1272892.
The previous prime is 1272883. The next prime is 1272899. The reversal of 1272893 is 3982721.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 806404 + 466489 = 898^2 + 683^2 .
It is an emirp because it is prime and its reverse (3982721) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 1272893 - 212 = 1268797 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (1272899) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 636446 + 636447.
It is an arithmetic number, because the mean of its divisors is an integer number (636447).
21272893 is an apocalyptic number.
It is an amenable number.
1272893 is a deficient number, since it is larger than the sum of its proper divisors (1).
1272893 is an equidigital number, since it uses as much as digits as its factorization.
1272893 is an evil number, because the sum of its binary digits is even.
The product of its digits is 6048, while the sum is 32.
The square root of 1272893 is about 1128.2255980078. The cubic root of 1272893 is about 108.3753798654.
It can be divided in two parts, 12728 and 93, that added together give a palindrome (12821).
The spelling of 1272893 in words is "one million, two hundred seventy-two thousand, eight hundred ninety-three".
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