Base | Representation |
---|---|
bin | 100000000010111101… |
… | …0101100101110101111 |
3 | 20120122002121202000210 |
4 | 1000011322230232233 |
5 | 2111420100003013 |
6 | 51340452353503 |
7 | 4654251504135 |
oct | 1000572545657 |
9 | 216562552023 |
10 | 68818750383 |
11 | 27205432819 |
12 | 11407315893 |
13 | 66497b9896 |
14 | 348bba7755 |
15 | 1bcba7acc3 |
hex | 1005eacbaf |
68818750383 has 16 divisors (see below), whose sum is σ = 91860549120. Its totient is φ = 45828095424.
The previous prime is 68818750331. The next prime is 68818750433. The reversal of 68818750383 is 38305781886.
It is not a de Polignac number, because 68818750383 - 213 = 68818742191 is a prime.
It is a super-3 number, since 3×688187503833 (a number of 33 digits) contains 333 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68818750313) 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 15 ways as a sum of consecutive naturals, for example, 15417610 + ... + 15422072.
It is an arithmetic number, because the mean of its divisors is an integer number (5741284320).
Almost surely, 268818750383 is an apocalyptic number.
68818750383 is a deficient number, since it is larger than the sum of its proper divisors (23041798737).
68818750383 is a wasteful number, since it uses less digits than its factorization.
68818750383 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 9038.
The product of its (nonzero) digits is 7741440, while the sum is 57.
The spelling of 68818750383 in words is "sixty-eight billion, eight hundred eighteen million, seven hundred fifty thousand, three hundred eighty-three".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.070 sec. • engine limits •