Base | Representation |
---|---|
bin | 10000010000101… |
… | …101100000010101 |
3 | 201000100111101211 |
4 | 100100231200111 |
5 | 1024320104044 |
6 | 43023221421 |
7 | 6521620234 |
oct | 2020554025 |
9 | 630314354 |
10 | 272816149 |
11 | 12aaa78a1 |
12 | 77447871 |
13 | 446a0898 |
14 | 28338b1b |
15 | 18e3e634 |
hex | 1042d815 |
272816149 has 2 divisors, whose sum is σ = 272816150. Its totient is φ = 272816148.
The previous prime is 272816147. The next prime is 272816171. The reversal of 272816149 is 941618272.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 149206225 + 123609924 = 12215^2 + 11118^2 .
It is a cyclic number.
It is not a de Polignac number, because 272816149 - 21 = 272816147 is a prime.
Together with 272816147, it forms a pair of twin primes.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (272816143) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136408074 + 136408075.
It is an arithmetic number, because the mean of its divisors is an integer number (136408075).
Almost surely, 2272816149 is an apocalyptic number.
It is an amenable number.
272816149 is a deficient number, since it is larger than the sum of its proper divisors (1).
272816149 is an equidigital number, since it uses as much as digits as its factorization.
272816149 is an evil number, because the sum of its binary digits is even.
The product of its digits is 48384, while the sum is 40.
The square root of 272816149 is about 16517.1471204927. The cubic root of 272816149 is about 648.5697538444.
The spelling of 272816149 in words is "two hundred seventy-two million, eight hundred sixteen thousand, one hundred forty-nine".
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