Base | Representation |
---|---|
bin | 11101000011010… |
… | …01011000001101 |
3 | 121222120022021122 |
4 | 32201221120031 |
5 | 444341420021 |
6 | 40103210325 |
7 | 6016266206 |
oct | 1641513015 |
9 | 558508248 |
10 | 243701261 |
11 | 115621401 |
12 | 697469a5 |
13 | 3b64873b |
14 | 2451a5ad |
15 | 165dcbab |
hex | e86960d |
243701261 has 16 divisors (see below), whose sum is σ = 267494400. Its totient is φ = 221295360.
The previous prime is 243701257. The next prime is 243701279. The reversal of 243701261 is 162107342.
It is not a de Polignac number, because 243701261 - 22 = 243701257 is a prime.
It is a super-2 number, since 2×2437012612 = 118780609225980242, which contains 22 as substring.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 243701261.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (243701221) 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 15 ways as a sum of consecutive naturals, for example, 34565 + ... + 41013.
It is an arithmetic number, because the mean of its divisors is an integer number (16718400).
Almost surely, 2243701261 is an apocalyptic number.
It is an amenable number.
243701261 is a deficient number, since it is larger than the sum of its proper divisors (23793139).
243701261 is a wasteful number, since it uses less digits than its factorization.
243701261 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 6556.
The product of its (nonzero) digits is 2016, while the sum is 26.
The square root of 243701261 is about 15610.9340207433. The cubic root of 243701261 is about 624.6248509195.
The spelling of 243701261 in words is "two hundred forty-three million, seven hundred one thousand, two hundred sixty-one".
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