Base | Representation |
---|---|
bin | 11011001111101111101110 |
3 | 111102212111200 |
4 | 123033233232 |
5 | 3312024012 |
6 | 413030330 |
7 | 114465162 |
oct | 33175756 |
9 | 14385450 |
10 | 7142382 |
11 | 40391a5 |
12 | 24853a6 |
13 | 1630c80 |
14 | d3cca2 |
15 | 9613dc |
hex | 6cfbee |
7142382 has 48 divisors (see below), whose sum is σ = 16864848. Its totient is φ = 2171520.
The previous prime is 7142371. The next prime is 7142383. The reversal of 7142382 is 2832417.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (7142383) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30538 + ... + 30770.
It is an arithmetic number, because the mean of its divisors is an integer number (351351).
Almost surely, 27142382 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 7142382, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8432424).
7142382 is an abundant number, since it is smaller than the sum of its proper divisors (9722466).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
7142382 is a wasteful number, since it uses less digits than its factorization.
7142382 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 385 (or 382 counting only the distinct ones).
The product of its digits is 2688, while the sum is 27.
The square root of 7142382 is about 2672.5235265569. The cubic root of 7142382 is about 192.5814081943.
Adding to 7142382 its reverse (2832417), we get a palindrome (9974799).
The spelling of 7142382 in words is "seven million, one hundred forty-two thousand, three hundred eighty-two".
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