Base | Representation |
---|---|
bin | 1000000101111… |
… | …00010010011101 |
3 | 11201201122222112 |
4 | 10002330102131 |
5 | 114334130333 |
6 | 10422523405 |
7 | 1452654101 |
oct | 402742235 |
9 | 151648875 |
10 | 67880093 |
11 | 35353356 |
12 | 1a896565 |
13 | 110a8948 |
14 | 902d901 |
15 | 5e5c948 |
hex | 40bc49d |
67880093 has 6 divisors (see below), whose sum is σ = 68341086. Its totient is φ = 67420472.
The previous prime is 67880083. The next prime is 67880143. The reversal of 67880093 is 39008876.
It can be written as a sum of positive squares in only one way, i.e., 67535524 + 344569 = 8218^2 + 587^2 .
It is not a de Polignac number, because 67880093 - 214 = 67863709 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 67880093.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (67880023) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 115346 + ... + 115932.
It is an arithmetic number, because the mean of its divisors is an integer number (11390181).
Almost surely, 267880093 is an apocalyptic number.
It is an amenable number.
67880093 is a deficient number, since it is larger than the sum of its proper divisors (460993).
67880093 is an frugal number, since it uses more digits than its factorization.
67880093 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1371 (or 784 counting only the distinct ones).
The product of its (nonzero) digits is 72576, while the sum is 41.
The square root of 67880093 is about 8238.9376135519. The cubic root of 67880093 is about 407.9254577550.
The spelling of 67880093 in words is "sixty-seven million, eight hundred eighty thousand, ninety-three".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.086 sec. • engine limits •