Base | Representation |
---|---|
bin | 1000001101110… |
… | …01011010011000 |
3 | 11210200100012100 |
4 | 10012321122120 |
5 | 120120320023 |
6 | 10501043400 |
7 | 1464532605 |
oct | 406713230 |
9 | 153610170 |
10 | 68916888 |
11 | 359a1307 |
12 | 1b0b6560 |
13 | 1137c831 |
14 | 921d6ac |
15 | 60b4c43 |
hex | 41b9698 |
68916888 has 48 divisors (see below), whose sum is σ = 188482320. Its totient is φ = 22746816.
The previous prime is 68916839. The next prime is 68916893. The reversal of 68916888 is 88861986.
It is a nude number because it is divisible by every one of its digits.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2770 + ... + 12062.
It is an arithmetic number, because the mean of its divisors is an integer number (3926715).
Almost surely, 268916888 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 68916888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94241160).
68916888 is an abundant number, since it is smaller than the sum of its proper divisors (119565432).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68916888 is a wasteful number, since it uses less digits than its factorization.
68916888 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9408 (or 9401 counting only the distinct ones).
The product of its digits is 1327104, while the sum is 54.
The square root of 68916888 is about 8301.6196010176. The cubic root of 68916888 is about 409.9918459612.
The spelling of 68916888 in words is "sixty-eight million, nine hundred sixteen thousand, eight hundred eighty-eight".
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