Base | Representation |
---|---|
bin | 1001010110010… |
… | …11111100110010 |
3 | 12110120122201220 |
4 | 10223023330302 |
5 | 130034230002 |
6 | 11441005510 |
7 | 1641433620 |
oct | 453137462 |
9 | 173518656 |
10 | 78430002 |
11 | 402a9692 |
12 | 22323896 |
13 | 133308b1 |
14 | a5b8510 |
15 | 6d437bc |
hex | 4acbf32 |
78430002 has 32 divisors (see below), whose sum is σ = 179544192. Its totient is φ = 22374144.
The previous prime is 78429997. The next prime is 78430003. The reversal of 78430002 is 20003487.
It is not an unprimeable number, because it can be changed into a prime (78430003) 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, 40938 + ... + 42810.
It is an arithmetic number, because the mean of its divisors is an integer number (5610756).
Almost surely, 278430002 is an apocalyptic number.
78430002 is an abundant number, since it is smaller than the sum of its proper divisors (101114190).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
78430002 is a wasteful number, since it uses less digits than its factorization.
78430002 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2882.
The product of its (nonzero) digits is 1344, while the sum is 24.
The square root of 78430002 is about 8856.0714766763. The cubic root of 78430002 is about 428.0495801008.
Adding to 78430002 its reverse (20003487), we get a palindrome (98433489).
The spelling of 78430002 in words is "seventy-eight million, four hundred thirty thousand, two".
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