Base | Representation |
---|---|
bin | 10010011000011101… |
… | …11110110011101001 |
3 | 221110210010121021100 |
4 | 21030032332303221 |
5 | 130202421232111 |
6 | 4311141232013 |
7 | 466363344330 |
oct | 111416766351 |
9 | 27423117240 |
10 | 9868930281 |
11 | 4204832431 |
12 | 1ab5102609 |
13 | c137b8b22 |
14 | 6989a4d17 |
15 | 3cb61c756 |
hex | 24c3bece9 |
9868930281 has 48 divisors (see below), whose sum is σ = 16495015680. Its totient is φ = 5569257600.
The previous prime is 9868930241. The next prime is 9868930319. The reversal of 9868930281 is 1820398689.
It is a happy number.
It is not a de Polignac number, because 9868930281 - 26 = 9868930217 is a prime.
It is a super-2 number, since 2×98689302812 (a number of 21 digits) contains 22 as substring.
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (9868930241) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2791591 + ... + 2795123.
It is an arithmetic number, because the mean of its divisors is an integer number (343646160).
Almost surely, 29868930281 is an apocalyptic number.
It is an amenable number.
9868930281 is a deficient number, since it is larger than the sum of its proper divisors (6626085399).
9868930281 is a wasteful number, since it uses less digits than its factorization.
9868930281 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4086 (or 4083 counting only the distinct ones).
The product of its (nonzero) digits is 1492992, while the sum is 54.
The square root of 9868930281 is about 99342.4898067287. The cubic root of 9868930281 is about 2144.9805589383.
The spelling of 9868930281 in words is "nine billion, eight hundred sixty-eight million, nine hundred thirty thousand, two hundred eighty-one".
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