Base | Representation |
---|---|
bin | 101111100110000110… |
… | …0010000001101111111 |
3 | 100202211012011120211011 |
4 | 1133030030100031333 |
5 | 3133311230341111 |
6 | 114542111140051 |
7 | 10245600524161 |
oct | 1371414201577 |
9 | 322735146734 |
10 | 102210012031 |
11 | 3a38a983926 |
12 | 17985b14627 |
13 | 983b63827a |
14 | 4d38786931 |
15 | 29d3283021 |
hex | 17cc31037f |
102210012031 has 2 divisors, whose sum is σ = 102210012032. Its totient is φ = 102210012030.
The previous prime is 102210012007. The next prime is 102210012071. The reversal of 102210012031 is 130210012201.
It is a weak prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-102210012031 is a prime.
It is a super-2 number, since 2×1022100120312 (a number of 23 digits) contains 22 as substring.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (102210012071) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51105006015 + 51105006016.
It is an arithmetic number, because the mean of its divisors is an integer number (51105006016).
Almost surely, 2102210012031 is an apocalyptic number.
102210012031 is a deficient number, since it is larger than the sum of its proper divisors (1).
102210012031 is an equidigital number, since it uses as much as digits as its factorization.
102210012031 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 24, while the sum is 13.
Adding to 102210012031 its reverse (130210012201), we get a palindrome (232420024232).
The spelling of 102210012031 in words is "one hundred two billion, two hundred ten million, twelve thousand, thirty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.074 sec. • engine limits •