Base | Representation |
---|---|
bin | 1001110010010101011… |
… | …0000111111101100111 |
3 | 121001222021210020021021 |
4 | 2130211112013331213 |
5 | 10223312323000234 |
6 | 205123223232011 |
7 | 15101265545200 |
oct | 2344526077547 |
9 | 531867706237 |
10 | 168130281319 |
11 | 65338184920 |
12 | 287025a8607 |
13 | 12b15796580 |
14 | 81cd6125a7 |
15 | 459061e9b4 |
hex | 2725587f67 |
168130281319 has 24 divisors (see below), whose sum is σ = 229772461968. Its totient is φ = 120932864640.
The previous prime is 168130281289. The next prime is 168130281331. The reversal of 168130281319 is 913182031861.
It is not a de Polignac number, because 168130281319 - 211 = 168130279271 is a prime.
It is a super-2 number, since 2×1681302813192 (a number of 23 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (168130281379) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11990302 + ... + 12004315.
It is an arithmetic number, because the mean of its divisors is an integer number (9573852582).
Almost surely, 2168130281319 is an apocalyptic number.
168130281319 is a deficient number, since it is larger than the sum of its proper divisors (61642180649).
168130281319 is a wasteful number, since it uses less digits than its factorization.
168130281319 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 23994655 (or 23994648 counting only the distinct ones).
The product of its (nonzero) digits is 62208, while the sum is 43.
The spelling of 168130281319 in words is "one hundred sixty-eight billion, one hundred thirty million, two hundred eighty-one thousand, three hundred nineteen".
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