Base | Representation |
---|---|
bin | 1000000000000… |
… | …10010000111110 |
3 | 11200021221210010 |
4 | 10000002100332 |
5 | 114140240032 |
6 | 10354324050 |
7 | 1443331500 |
oct | 400022076 |
9 | 150257703 |
10 | 67118142 |
11 | 34982943 |
12 | 1a589626 |
13 | 10b9cba0 |
14 | 8cb1d70 |
15 | 5d5bccc |
hex | 400243e |
67118142 has 96 divisors (see below), whose sum is σ = 178228512. Its totient is φ = 16644096.
The previous prime is 67118113. The next prime is 67118143. The reversal of 67118142 is 24181176.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (67118143) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 64458 + ... + 65490.
It is an arithmetic number, because the mean of its divisors is an integer number (1856547).
Almost surely, 267118142 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 67118142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89114256).
67118142 is an abundant number, since it is smaller than the sum of its proper divisors (111110370).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
67118142 is a wasteful number, since it uses less digits than its factorization.
67118142 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1082 (or 1075 counting only the distinct ones).
The product of its digits is 2688, while the sum is 30.
The square root of 67118142 is about 8192.5662646084. The cubic root of 67118142 is about 406.3933959430.
The spelling of 67118142 in words is "sixty-seven million, one hundred eighteen thousand, one hundred forty-two".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.120 sec. • engine limits •