Base | Representation |
---|---|
bin | 1100001101011… |
… | …01011011010111 |
3 | 21010201120212222 |
4 | 12012231123113 |
5 | 202210002411 |
6 | 14055132555 |
7 | 2352401042 |
oct | 606553327 |
9 | 233646788 |
10 | 102422231 |
11 | 528a637a |
12 | 2a37415b |
13 | 182b1192 |
14 | d861c59 |
15 | 8ed24db |
hex | 61ad6d7 |
102422231 has 2 divisors, whose sum is σ = 102422232. Its totient is φ = 102422230.
The previous prime is 102422227. The next prime is 102422251. The reversal of 102422231 is 132224201.
It is a weak prime.
It is an emirp because it is prime and its reverse (132224201) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 102422231 - 22 = 102422227 is a prime.
It is a super-2 number, since 2×1024222312 = 20980626806034722, which contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (102422251) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51211115 + 51211116.
It is an arithmetic number, because the mean of its divisors is an integer number (51211116).
Almost surely, 2102422231 is an apocalyptic number.
102422231 is a deficient number, since it is larger than the sum of its proper divisors (1).
102422231 is an equidigital number, since it uses as much as digits as its factorization.
102422231 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 192, while the sum is 17.
The square root of 102422231 is about 10120.3868997188. The cubic root of 102422231 is about 467.8766918301.
Adding to 102422231 its reverse (132224201), we get a palindrome (234646432).
The spelling of 102422231 in words is "one hundred two million, four hundred twenty-two thousand, two hundred thirty-one".
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