Base | Representation |
---|---|
bin | 1000001101001… |
… | …10000110101000 |
3 | 11210112022201011 |
4 | 10012212012220 |
5 | 120110302200 |
6 | 10455233304 |
7 | 1464053203 |
oct | 406460650 |
9 | 153468634 |
10 | 68837800 |
11 | 35947949 |
12 | 1b078834 |
13 | 11352835 |
14 | 91dc93a |
15 | 609b5ba |
hex | 41a61a8 |
68837800 has 24 divisors (see below), whose sum is σ = 160048350. Its totient is φ = 27535040.
The previous prime is 68837789. The next prime is 68837801. The reversal of 68837800 is 873886.
It can be written as a sum of positive squares in 3 ways, for example, as 57668836 + 11168964 = 7594^2 + 3342^2 .
It is a Harshad number since it is a multiple of its sum of digits (40).
It is not an unprimeable number, because it can be changed into a prime (68837801) by changing a digit.
It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 171895 + ... + 172294.
Almost surely, 268837800 is an apocalyptic number.
It is an amenable number.
68837800 is an abundant number, since it is smaller than the sum of its proper divisors (91210550).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68837800 is a wasteful number, since it uses less digits than its factorization.
68837800 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 344205 (or 344196 counting only the distinct ones).
The product of its (nonzero) digits is 64512, while the sum is 40.
The square root of 68837800 is about 8296.8548257758. The cubic root of 68837800 is about 409.8349524062.
The spelling of 68837800 in words is "sixty-eight million, eight hundred thirty-seven thousand, eight hundred".
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