Base | Representation |
---|---|
bin | 1000001101000… |
… | …01001011000000 |
3 | 11210111022000000 |
4 | 10012201023000 |
5 | 120104130400 |
6 | 10455000000 |
7 | 1463640255 |
oct | 406411300 |
9 | 153438000 |
10 | 68817600 |
11 | 35933755 |
12 | 1b069000 |
13 | 11346597 |
14 | 91d542c |
15 | 6095600 |
hex | 41a12c0 |
68817600 has 294 divisors, whose sum is σ = 258188460. Its totient is φ = 18040320.
The previous prime is 68817571. The next prime is 68817607. The reversal of 68817600 is 671886.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is not an unprimeable number, because it can be changed into a prime (68817607) by changing a digit.
It is a polite number, since it can be written in 41 ways as a sum of consecutive naturals, for example, 1166371 + ... + 1166429.
Almost surely, 268817600 is an apocalyptic number.
68817600 is a gapful number since it is divisible by the number (60) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 68817600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129094230).
68817600 is an abundant number, since it is smaller than the sum of its proper divisors (189370860).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68817600 is an equidigital number, since it uses as much as digits as its factorization.
68817600 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 99 (or 69 counting only the distinct ones).
The product of its (nonzero) digits is 16128, while the sum is 36.
The square root of 68817600 is about 8295.6374076981. The cubic root of 68817600 is about 409.7948606933.
The spelling of 68817600 in words is "sixty-eight million, eight hundred seventeen thousand, six hundred".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.068 sec. • engine limits •