Base | Representation |
---|---|
bin | 1000001100111… |
… | …01000000000000 |
3 | 11210110102120010 |
4 | 10012131000000 |
5 | 120103104022 |
6 | 10454344520 |
7 | 1463536404 |
oct | 406350000 |
9 | 153412503 |
10 | 68800512 |
11 | 35921930 |
12 | 1b05b140 |
13 | 1133b881 |
14 | 91cd104 |
15 | 609050c |
hex | 419d000 |
68800512 has 104 divisors (see below), whose sum is σ = 200515680. Its totient is φ = 20807680.
The previous prime is 68800489. The next prime is 68800553. The reversal of 68800512 is 21500886.
It is a self number, because there is not a number n which added to its sum of digits gives 68800512.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (7) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134914 + ... + 135422.
Almost surely, 268800512 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 68800512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100257840).
68800512 is an abundant number, since it is smaller than the sum of its proper divisors (131715168).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68800512 is a wasteful number, since it uses less digits than its factorization.
68800512 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 547 (or 525 counting only the distinct ones).
The product of its (nonzero) digits is 3840, while the sum is 30.
The square root of 68800512 is about 8294.6074048143. The cubic root of 68800512 is about 409.7609393599.
The spelling of 68800512 in words is "sixty-eight million, eight hundred thousand, five hundred twelve".
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