Base | Representation |
---|---|
bin | 1000001000010… |
… | …00011101110000 |
3 | 11202022111222210 |
4 | 10010020131300 |
5 | 114424121422 |
6 | 10433332120 |
7 | 1455423552 |
oct | 404103560 |
9 | 152274883 |
10 | 68192112 |
11 | 3554681a |
12 | 1aa07040 |
13 | 11187981 |
14 | 90b14d2 |
15 | 5ec010c |
hex | 4108770 |
68192112 has 80 divisors (see below), whose sum is σ = 181988352. Its totient is φ = 21991680.
The previous prime is 68192107. The next prime is 68192119. The reversal of 68192112 is 21129186.
It is a happy number.
It is a self number, because there is not a number n which added to its sum of digits gives 68192112.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68192119) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 376662 + ... + 376842.
Almost surely, 268192112 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 68192112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90994176).
68192112 is an abundant number, since it is smaller than the sum of its proper divisors (113796240).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68192112 is a wasteful number, since it uses less digits than its factorization.
68192112 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 406 (or 400 counting only the distinct ones).
The product of its digits is 1728, while the sum is 30.
The square root of 68192112 is about 8257.8515365681. The cubic root of 68192112 is about 408.5495286437.
The spelling of 68192112 in words is "sixty-eight million, one hundred ninety-two thousand, one hundred twelve".
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