Base | Representation |
---|---|
bin | 1000001000101… |
… | …00001001001110 |
3 | 11202101221121120 |
4 | 10010110021032 |
5 | 114432134300 |
6 | 10434341410 |
7 | 1456013202 |
oct | 404241116 |
9 | 152357546 |
10 | 68239950 |
11 | 35579759 |
12 | 1aa2a866 |
13 | 111a368c |
14 | 90c4b02 |
15 | 5ece3a0 |
hex | 411424e |
68239950 has 48 divisors (see below), whose sum is σ = 170334336. Its totient is φ = 18079200.
The previous prime is 68239903. The next prime is 68239961. The reversal of 68239950 is 5993286.
It is a Curzon number.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23055 + ... + 25845.
It is an arithmetic number, because the mean of its divisors is an integer number (3548632).
Almost surely, 268239950 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 68239950, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85167168).
68239950 is an abundant number, since it is smaller than the sum of its proper divisors (102094386).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68239950 is a wasteful number, since it uses less digits than its factorization.
68239950 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2969 (or 2964 counting only the distinct ones).
The product of its (nonzero) digits is 116640, while the sum is 42.
The square root of 68239950 is about 8260.7475448654. The cubic root of 68239950 is about 408.6450412739.
The spelling of 68239950 in words is "sixty-eight million, two hundred thirty-nine thousand, nine hundred fifty".
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