Base | Representation |
---|---|
bin | 11001010001100000000… |
… | …01001001001101101010 |
3 | 10002000110112002220101010 |
4 | 30220300001021031222 |
5 | 103211430041000132 |
6 | 1502533222004350 |
7 | 116511326465544 |
oct | 14506001111552 |
9 | 3060415086333 |
10 | 868389000042 |
11 | 305310a51743 |
12 | 1203718766b6 |
13 | 63b727094c5 |
14 | 3005d022694 |
15 | 178c727e6cc |
hex | ca3004936a |
868389000042 has 64 divisors (see below), whose sum is σ = 1792141303680. Its totient is φ = 280397894400.
The previous prime is 868388999999. The next prime is 868389000043. The reversal of 868389000042 is 240000983868.
It is a happy number.
It is a junction number, because it is equal to n+sod(n) for n = 868388999955 and 868389000000.
It is not an unprimeable number, because it can be changed into a prime (868389000043) 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, 7946292 + ... + 8054832.
It is an arithmetic number, because the mean of its divisors is an integer number (28002207870).
Almost surely, 2868389000042 is an apocalyptic number.
868389000042 is an abundant number, since it is smaller than the sum of its proper divisors (923752303638).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
868389000042 is a wasteful number, since it uses less digits than its factorization.
868389000042 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 108919.
The product of its (nonzero) digits is 663552, while the sum is 48.
The spelling of 868389000042 in words is "eight hundred sixty-eight billion, three hundred eighty-nine million, forty-two", and thus it is an aban number.
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