Base | Representation |
---|---|
bin | 101111100110001000… |
… | …0100001101101000111 |
3 | 100202211021021111110001 |
4 | 1133030100201231013 |
5 | 3133312022212411 |
6 | 114542151142131 |
7 | 10245613201105 |
oct | 1371420415507 |
9 | 322737244401 |
10 | 102211132231 |
11 | 3a39057950a |
12 | 17986374947 |
13 | 983b93b100 |
14 | 4d38998c75 |
15 | 29d3404dc1 |
hex | 17cc421b47 |
102211132231 has 12 divisors (see below), whose sum is σ = 117188819712. Its totient is φ = 88798809216.
The previous prime is 102211132193. The next prime is 102211132249. The reversal of 102211132231 is 132231112201.
It is not a de Polignac number, because 102211132231 - 27 = 102211132103 is a prime.
It is a super-2 number, since 2×1022111322312 (a number of 23 digits) contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 102211132199 and 102211132208.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (102211132291) by changing a digit.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17785351 + ... + 17791096.
It is an arithmetic number, because the mean of its divisors is an integer number (9765734976).
Almost surely, 2102211132231 is an apocalyptic number.
102211132231 is a deficient number, since it is larger than the sum of its proper divisors (14977687481).
102211132231 is a wasteful number, since it uses less digits than its factorization.
102211132231 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 35576490 (or 35576477 counting only the distinct ones).
The product of its (nonzero) digits is 144, while the sum is 19.
Adding to 102211132231 its reverse (132231112201), we get a palindrome (234442244432).
The spelling of 102211132231 in words is "one hundred two billion, two hundred eleven million, one hundred thirty-two thousand, two hundred thirty-one".
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