Base | Representation |
---|---|
bin | 1000001000011… |
… | …11111101010000 |
3 | 11202101002002101 |
4 | 10010033331100 |
5 | 114431112200 |
6 | 10434130144 |
7 | 1455612202 |
oct | 404177520 |
9 | 152332071 |
10 | 68222800 |
11 | 35567888 |
12 | 1aa20954 |
13 | 11198929 |
14 | 90bc772 |
15 | 5ec926a |
hex | 410ff50 |
68222800 has 30 divisors (see below), whose sum is σ = 163906238. Its totient is φ = 27288960.
The previous prime is 68222767. The next prime is 68222801. The reversal of 68222800 is 822286.
It is a happy number.
It can be written as a sum of positive squares in 3 ways, for example, as 456976 + 67765824 = 676^2 + 8232^2 .
It is a plaindrome in base 11.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68222801) 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, 84879 + ... + 85678.
Almost surely, 268222800 is an apocalyptic number.
It is an amenable number.
68222800 is an abundant number, since it is smaller than the sum of its proper divisors (95683438).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68222800 is a wasteful number, since it uses less digits than its factorization.
68222800 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 170575 (or 170564 counting only the distinct ones).
The product of its (nonzero) digits is 3072, while the sum is 28.
The square root of 68222800 is about 8259.7094379887. The cubic root of 68222800 is about 408.6108049766.
The spelling of 68222800 in words is "sixty-eight million, two hundred twenty-two thousand, eight hundred".
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