Base | Representation |
---|---|
bin | 100111000111100000… |
… | …111010100010000000 |
3 | 11000102012011200012122 |
4 | 213013200322202000 |
5 | 1142010003000000 |
6 | 31143452343412 |
7 | 3014564052332 |
oct | 470740724200 |
9 | 130365150178 |
10 | 42002000000 |
11 | 168a40412a4 |
12 | 8182474b68 |
13 | 3c64a7a04c |
14 | 2066427452 |
15 | 115c642085 |
hex | 9c783a880 |
42002000000 has 112 divisors (see below), whose sum is σ = 104598465810. Its totient is φ = 16800000000.
The previous prime is 42001999937. The next prime is 42002000009. The reversal of 42002000000 is 20024.
It can be written as a sum of positive squares in 7 ways, for example, as 28566408256 + 13435591744 = 169016^2 + 115912^2 .
It is a Harshad number since it is a multiple of its sum of digits (8).
It is not an unprimeable number, because it can be changed into a prime (42002000009) by changing a digit.
It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 1989500 + ... + 2010500.
Almost surely, 242002000000 is an apocalyptic number.
42002000000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 42002000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52299232905).
42002000000 is an abundant number, since it is smaller than the sum of its proper divisors (62596465810).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
42002000000 is an frugal number, since it uses more digits than its factorization.
42002000000 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 21045 (or 21008 counting only the distinct ones).
The product of its (nonzero) digits is 16, while the sum is 8.
Adding to 42002000000 its reverse (20024), we get a palindrome (42002020024).
The spelling of 42002000000 in words is "forty-two billion, two million", and thus it is an aban number, an eban number, and an uban number.
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.065 sec. • engine limits •