Base | Representation |
---|---|
bin | 1000001011010… |
… | …01011011101000 |
3 | 11210001200211000 |
4 | 10011221123220 |
5 | 120024324123 |
6 | 10450035000 |
7 | 1461666525 |
oct | 405513350 |
9 | 153050730 |
10 | 68589288 |
11 | 35798169 |
12 | 1ab78a60 |
13 | 112966a1 |
14 | 917614c |
15 | 604cb43 |
hex | 41696e8 |
68589288 has 64 divisors (see below), whose sum is σ = 201744000. Its totient is φ = 21517056.
The previous prime is 68589281. The next prime is 68589299. The reversal of 68589288 is 88298586.
It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.
It is a Harshad number since it is a multiple of its sum of digits (54).
It is not an unprimeable number, because it can be changed into a prime (68589281) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5668 + ... + 13011.
It is an arithmetic number, because the mean of its divisors is an integer number (3152250).
Almost surely, 268589288 is an apocalyptic number.
68589288 is a gapful number since it is divisible by the number (68) formed by its first and last digit.
It is an amenable number.
68589288 is an abundant number, since it is smaller than the sum of its proper divisors (133154712).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68589288 is a wasteful number, since it uses less digits than its factorization.
68589288 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 18711 (or 18701 counting only the distinct ones).
The product of its digits is 2211840, while the sum is 54.
The square root of 68589288 is about 8281.8650073519. The cubic root of 68589288 is about 409.3411747046.
The spelling of 68589288 in words is "sixty-eight million, five hundred eighty-nine thousand, two hundred eighty-eight".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.097 sec. • engine limits •