Base | Representation |
---|---|
bin | 1000000111101… |
… | …01110101110000 |
3 | 11202011122100022 |
4 | 10003311311300 |
5 | 114414201244 |
6 | 10431543012 |
7 | 1454655260 |
oct | 403656560 |
9 | 152148308 |
10 | 68115824 |
11 | 354a4477 |
12 | 1a98aa68 |
13 | 1115c02a |
14 | 90917a0 |
15 | 5ea76ee |
hex | 40f5d70 |
68115824 has 20 divisors (see below), whose sum is σ = 150828144. Its totient is φ = 29192448.
The previous prime is 68115823. The next prime is 68115829. The reversal of 68115824 is 42851186.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68115823) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 303977 + ... + 304200.
Almost surely, 268115824 is an apocalyptic number.
It is an amenable number.
68115824 is an abundant number, since it is smaller than the sum of its proper divisors (82712320).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68115824 is a wasteful number, since it uses less digits than its factorization.
68115824 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 608192 (or 608186 counting only the distinct ones).
The product of its digits is 15360, while the sum is 35.
The square root of 68115824 is about 8253.2311248383. The cubic root of 68115824 is about 408.3971207120.
The spelling of 68115824 in words is "sixty-eight million, one hundred fifteen thousand, eight hundred twenty-four".
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