Base | Representation |
---|---|
bin | 111111110011000111… |
… | …010000010111000111 |
3 | 20112211002222221002112 |
4 | 333303013100113013 |
5 | 2110243314244301 |
6 | 51245302531235 |
7 | 4643401141526 |
oct | 776307202707 |
9 | 215732887075 |
10 | 68503274951 |
11 | 27063349421 |
12 | 11339736b1b |
13 | 65c9330c27 |
14 | 345bd264bd |
15 | 1bae0119bb |
hex | ff31d05c7 |
68503274951 has 2 divisors, whose sum is σ = 68503274952. Its totient is φ = 68503274950.
The previous prime is 68503274933. The next prime is 68503274993. The reversal of 68503274951 is 15947230586.
It is a happy number.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 68503274951 - 218 = 68503012807 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 68503274951.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (68503274921) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34251637475 + 34251637476.
It is an arithmetic number, because the mean of its divisors is an integer number (34251637476).
It is a 1-persistent number, because it is pandigital, but 2⋅68503274951 = 137006549902 is not.
Almost surely, 268503274951 is an apocalyptic number.
68503274951 is a deficient number, since it is larger than the sum of its proper divisors (1).
68503274951 is an equidigital number, since it uses as much as digits as its factorization.
68503274951 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 1814400, while the sum is 50.
The spelling of 68503274951 in words is "sixty-eight billion, five hundred three million, two hundred seventy-four thousand, nine hundred fifty-one".
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