Base | Representation |
---|---|
bin | 100111100111100110… |
… | …100110110110000100 |
3 | 11001210201012100121012 |
4 | 213213212212312010 |
5 | 1144110313110030 |
6 | 31313123341352 |
7 | 3034122056222 |
oct | 474746466604 |
9 | 131721170535 |
10 | 42540363140 |
11 | 1704aa20510 |
12 | 82b2821858 |
13 | 401c474912 |
14 | 20b7b27b12 |
15 | 118ea37095 |
hex | 9e79a6d84 |
42540363140 has 96 divisors (see below), whose sum is σ = 98287862400. Its totient is φ = 15337733120.
The previous prime is 42540363113. The next prime is 42540363143. The reversal of 42540363140 is 4136304524.
It is a junction number, because it is equal to n+sod(n) for n = 42540363097 and 42540363106.
It is not an unprimeable number, because it can be changed into a prime (42540363143) 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 31 ways as a sum of consecutive naturals, for example, 15317432 + ... + 15320208.
It is an arithmetic number, because the mean of its divisors is an integer number (1023831900).
Almost surely, 242540363140 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 42540363140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49143931200).
42540363140 is an abundant number, since it is smaller than the sum of its proper divisors (55747499260).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
42540363140 is a wasteful number, since it uses less digits than its factorization.
42540363140 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3365 (or 3363 counting only the distinct ones).
The product of its (nonzero) digits is 34560, while the sum is 32.
Adding to 42540363140 its reverse (4136304524), we get a palindrome (46676667664).
The spelling of 42540363140 in words is "forty-two billion, five hundred forty million, three hundred sixty-three thousand, one hundred forty".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.134 sec. • engine limits •