Base | Representation |
---|---|
bin | 1000000000110… |
… | …00001010100010 |
3 | 11200110111211100 |
4 | 10000120022202 |
5 | 114201122332 |
6 | 10400255230 |
7 | 1444154142 |
oct | 400301242 |
9 | 150414740 |
10 | 67207842 |
11 | 34a34279 |
12 | 1a611516 |
13 | 10c01970 |
14 | 8cd6922 |
15 | 5d7867c |
hex | 40182a2 |
67207842 has 48 divisors (see below), whose sum is σ = 157405248. Its totient is φ = 20602080.
The previous prime is 67207837. The next prime is 67207843. The reversal of 67207842 is 24870276.
It is a junction number, because it is equal to n+sod(n) for n = 67207797 and 67207806.
It is not an unprimeable number, because it can be changed into a prime (67207843) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (7) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 117417 + ... + 117987.
It is an arithmetic number, because the mean of its divisors is an integer number (3279276).
Almost surely, 267207842 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 67207842, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78702624).
67207842 is an abundant number, since it is smaller than the sum of its proper divisors (90197406).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
67207842 is a wasteful number, since it uses less digits than its factorization.
67207842 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1095 (or 1092 counting only the distinct ones).
The product of its (nonzero) digits is 37632, while the sum is 36.
The square root of 67207842 is about 8198.0389118374. The cubic root of 67207842 is about 406.5743567541.
The spelling of 67207842 in words is "sixty-seven million, two hundred seven thousand, eight hundred forty-two".
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