Base | Representation |
---|---|
bin | 1000000110101… |
… | …10100111111010 |
3 | 11201221010221200 |
4 | 10003112213322 |
5 | 114401103322 |
6 | 10425115030 |
7 | 1453613430 |
oct | 403264772 |
9 | 151833850 |
10 | 67987962 |
11 | 354173a9 |
12 | 1a928a76 |
13 | 11115a83 |
14 | 905ad50 |
15 | 5e7e8ac |
hex | 40d69fa |
67987962 has 48 divisors (see below), whose sum is σ = 169378560. Its totient is φ = 19306656.
The previous prime is 67987961. The next prime is 67987993. The reversal of 67987962 is 26978976.
It is a junction number, because it is equal to n+sod(n) for n = 67987899 and 67987908.
It is not an unprimeable number, because it can be changed into a prime (67987961) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20239 + ... + 23357.
It is an arithmetic number, because the mean of its divisors is an integer number (3528720).
Almost surely, 267987962 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 67987962, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84689280).
67987962 is an abundant number, since it is smaller than the sum of its proper divisors (101390598).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
67987962 is a wasteful number, since it uses less digits than its factorization.
67987962 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 3307 (or 3304 counting only the distinct ones).
The product of its digits is 2286144, while the sum is 54.
The square root of 67987962 is about 8245.4813079650. The cubic root of 67987962 is about 408.1414230036.
The spelling of 67987962 in words is "sixty-seven million, nine hundred eighty-seven thousand, nine hundred sixty-two".
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