Base | Representation |
---|---|
bin | 1000001101011… |
… | …11011111111000 |
3 | 11210121021111100 |
4 | 10012233133320 |
5 | 120113020110 |
6 | 10500131400 |
7 | 1464303324 |
oct | 406573770 |
9 | 153537440 |
10 | 68876280 |
11 | 35973850 |
12 | 1b096b60 |
13 | 113671c5 |
14 | 920c984 |
15 | 60a7bc0 |
hex | 41af7f8 |
68876280 has 96 divisors (see below), whose sum is σ = 244211760. Its totient is φ = 16696320.
The previous prime is 68876267. The next prime is 68876287. The reversal of 68876280 is 8267886.
It is a Harshad number since it is a multiple of its sum of digits (45).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (68876287) by changing a digit.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4737 + ... + 12656.
Almost surely, 268876280 is an apocalyptic number.
68876280 is a gapful number since it is divisible by the number (60) formed by its first and last digit.
It is an amenable number.
68876280 is an abundant number, since it is smaller than the sum of its proper divisors (175335480).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
68876280 is a wasteful number, since it uses less digits than its factorization.
68876280 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 17421 (or 17414 counting only the distinct ones).
The product of its (nonzero) digits is 258048, while the sum is 45.
The square root of 68876280 is about 8299.1734528205. The cubic root of 68876280 is about 409.9113034388.
The spelling of 68876280 in words is "sixty-eight million, eight hundred seventy-six thousand, two hundred eighty".
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