Base | Representation |
---|---|
bin | 100000000000001011… |
… | …1001100111001010101 |
3 | 20120101121021010022020 |
4 | 1000000113030321111 |
5 | 2111222220340434 |
6 | 51323323123353 |
7 | 4652040416562 |
oct | 1000027147125 |
9 | 216347233266 |
10 | 68725558869 |
11 | 27167871640 |
12 | 113a0073559 |
13 | 66333bb086 |
14 | 347d669869 |
15 | 1bc37bd849 |
hex | 10005cce55 |
68725558869 has 32 divisors (see below), whose sum is σ = 102833180160. Its totient is φ = 40460212800.
The previous prime is 68725558831. The next prime is 68725558877. The reversal of 68725558869 is 96885552786.
It is not a de Polignac number, because 68725558869 - 212 = 68725554773 is a prime.
It is a super-2 number, since 2×687255588692 (a number of 22 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68725558829) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 710334 + ... + 801264.
It is an arithmetic number, because the mean of its divisors is an integer number (3213536880).
Almost surely, 268725558869 is an apocalyptic number.
It is an amenable number.
68725558869 is a deficient number, since it is larger than the sum of its proper divisors (34107621291).
68725558869 is a wasteful number, since it uses less digits than its factorization.
68725558869 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 91601.
The product of its digits is 290304000, while the sum is 69.
The spelling of 68725558869 in words is "sixty-eight billion, seven hundred twenty-five million, five hundred fifty-eight thousand, eight hundred sixty-nine".
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