Base | Representation |
---|---|
bin | 10100101100011011… |
… | …01011010010100101 |
3 | 1001200021121200000222 |
4 | 22112031223102211 |
5 | 140223141232211 |
6 | 5034240014125 |
7 | 542214211313 |
oct | 122615532245 |
9 | 31607550028 |
10 | 11110102181 |
11 | 47913aa232 |
12 | 21a0901345 |
13 | 1080997379 |
14 | 7757710b3 |
15 | 45058c1db |
hex | 29636b4a5 |
11110102181 has 2 divisors, whose sum is σ = 11110102182. Its totient is φ = 11110102180.
The previous prime is 11110102153. The next prime is 11110102261. The reversal of 11110102181 is 18120101111.
11110102181 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 10939277281 + 170824900 = 104591^2 + 13070^2 .
It is a cyclic number.
It is not a de Polignac number, because 11110102181 - 214 = 11110085797 is a prime.
It is a super-4 number, since 4×111101021814 (a number of 41 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (11110102151) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5555051090 + 5555051091.
It is an arithmetic number, because the mean of its divisors is an integer number (5555051091).
Almost surely, 211110102181 is an apocalyptic number.
It is an amenable number.
11110102181 is a deficient number, since it is larger than the sum of its proper divisors (1).
11110102181 is an equidigital number, since it uses as much as digits as its factorization.
11110102181 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 16, while the sum is 17.
Adding to 11110102181 its reverse (18120101111), we get a palindrome (29230203292).
The spelling of 11110102181 in words is "eleven billion, one hundred ten million, one hundred two thousand, one hundred eighty-one".
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