Base | Representation |
---|---|
bin | 1111110100010101… |
… | …01110000001000011 |
3 | 210220211100102102122 |
4 | 13322022232001003 |
5 | 114342433044334 |
6 | 3522354434455 |
7 | 420304333166 |
oct | 77212560103 |
9 | 23824312378 |
10 | 8492081219 |
11 | 3668616346 |
12 | 178bb92a2b |
13 | a54484a3b |
14 | 5a7b9badd |
15 | 34a7ec32e |
hex | 1fa2ae043 |
8492081219 has 2 divisors, whose sum is σ = 8492081220. Its totient is φ = 8492081218.
The previous prime is 8492081209. The next prime is 8492081249. The reversal of 8492081219 is 9121802948.
It is a weak prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-8492081219 is a prime.
It is a super-2 number, since 2×84920812192 (a number of 21 digits) contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 8492081219.
It is not a weakly prime, because it can be changed into another prime (8492081209) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4246040609 + 4246040610.
It is an arithmetic number, because the mean of its divisors is an integer number (4246040610).
Almost surely, 28492081219 is an apocalyptic number.
8492081219 is a deficient number, since it is larger than the sum of its proper divisors (1).
8492081219 is an equidigital number, since it uses as much as digits as its factorization.
8492081219 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 82944, while the sum is 44.
The square root of 8492081219 is about 92152.4889463112. The cubic root of 8492081219 is about 2040.1935945808.
The spelling of 8492081219 in words is "eight billion, four hundred ninety-two million, eighty-one thousand, two hundred nineteen".
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