Base | Representation |
---|---|
bin | 1000001001100… |
… | …10001110110110 |
3 | 11202122012200000 |
4 | 10010302032312 |
5 | 120000110230 |
6 | 10441132130 |
7 | 1460035410 |
oct | 404621666 |
9 | 152565600 |
10 | 68363190 |
11 | 35653305 |
12 | 1aa8a046 |
13 | 112177bc |
14 | 91179b0 |
15 | 6005b60 |
hex | 41323b6 |
68363190 has 96 divisors (see below), whose sum is σ = 210712320. Its totient is φ = 15621984.
The previous prime is 68363177. The next prime is 68363201. The reversal of 68363190 is 9136386.
It is a happy number.
It is a super-2 number, since 2×683631902 = 9347051493952200, which contains 22 as substring.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15001 + ... + 19019.
It is an arithmetic number, because the mean of its divisors is an integer number (2194920).
Almost surely, 268363190 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 68363190, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105356160).
68363190 is an abundant number, since it is smaller than the sum of its proper divisors (142349130).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68363190 is a wasteful number, since it uses less digits than its factorization.
68363190 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 4048 (or 4036 counting only the distinct ones).
The product of its (nonzero) digits is 23328, while the sum is 36.
The square root of 68363190 is about 8268.2035533724. The cubic root of 68363190 is about 408.8908949516.
The spelling of 68363190 in words is "sixty-eight million, three hundred sixty-three thousand, one hundred ninety".
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