Base | Representation |
---|---|
bin | 1110000110111001001111… |
… | …00010000010011011010111 |
3 | 11001211210022222121122002101 |
4 | 13003130213202002123113 |
5 | 13031241014233411041 |
6 | 145551511123422531 |
7 | 6351232054115302 |
oct | 703344742023327 |
9 | 131753288548071 |
10 | 31023212013271 |
11 | 9980963454095 |
12 | 359060ab24a47 |
13 | 144062669928a |
14 | 79376250db39 |
15 | 38beb927db31 |
hex | 1c37278826d7 |
31023212013271 has 2 divisors, whose sum is σ = 31023212013272. Its totient is φ = 31023212013270.
The previous prime is 31023212013193. The next prime is 31023212013293. The reversal of 31023212013271 is 17231021232013.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 31023212013271 - 217 = 31023211882199 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (31023212013071) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15511606006635 + 15511606006636.
It is an arithmetic number, because the mean of its divisors is an integer number (15511606006636).
Almost surely, 231023212013271 is an apocalyptic number.
31023212013271 is a deficient number, since it is larger than the sum of its proper divisors (1).
31023212013271 is an equidigital number, since it uses as much as digits as its factorization.
31023212013271 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 3024, while the sum is 28.
Adding to 31023212013271 its reverse (17231021232013), we get a palindrome (48254233245284).
The spelling of 31023212013271 in words is "thirty-one trillion, twenty-three billion, two hundred twelve million, thirteen thousand, two hundred seventy-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.091 sec. • engine limits •