Base | Representation |
---|---|
bin | 10000010000110… |
… | …010111001010111 |
3 | 201000101121200200 |
4 | 100100302321113 |
5 | 1024321310411 |
6 | 43023511543 |
7 | 6522041511 |
oct | 2020627127 |
9 | 630347620 |
10 | 272838231 |
11 | 130012446 |
12 | 774585b3 |
13 | 446aa953 |
14 | 28342bb1 |
15 | 18e45e56 |
hex | 10432e57 |
272838231 has 12 divisors (see below), whose sum is σ = 403712400. Its totient is φ = 177455520.
The previous prime is 272838199. The next prime is 272838239. The reversal of 272838231 is 132838272.
It is a happy number.
272838231 is a `hidden beast` number, since 272 + 8 + 382 + 3 + 1 = 666.
It is not a de Polignac number, because 272838231 - 25 = 272838199 is a prime.
It is a super-2 number, since 2×2728382312 = 148881400590418722, which contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (272838239) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 369331 + ... + 370068.
It is an arithmetic number, because the mean of its divisors is an integer number (33642700).
Almost surely, 2272838231 is an apocalyptic number.
272838231 is a deficient number, since it is larger than the sum of its proper divisors (130874169).
272838231 is a wasteful number, since it uses less digits than its factorization.
272838231 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 739446 (or 739443 counting only the distinct ones).
The product of its digits is 32256, while the sum is 36.
The square root of 272838231 is about 16517.8155638087. The cubic root of 272838231 is about 648.5872519910.
The spelling of 272838231 in words is "two hundred seventy-two million, eight hundred thirty-eight thousand, two hundred thirty-one".
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