Base | Representation |
---|---|
bin | 11001000010101… |
… | …11000111001000 |
3 | 112122021202121202 |
4 | 30201113013020 |
5 | 412234301013 |
6 | 32502323332 |
7 | 5130403556 |
oct | 1441270710 |
9 | 478252552 |
10 | 210072008 |
11 | a8642233 |
12 | 5a429548 |
13 | 346a2883 |
14 | 1dc84bd6 |
15 | 13698858 |
hex | c8571c8 |
210072008 has 16 divisors (see below), whose sum is σ = 395928780. Its totient is φ = 104491008.
The previous prime is 210072007. The next prime is 210072017. The reversal of 210072008 is 800270012.
It can be written as a sum of positive squares in 2 ways, for example, as 182844484 + 27227524 = 13522^2 + 5218^2 .
It is not an unprimeable number, because it can be changed into a prime (210072007) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66485 + ... + 69572.
Almost surely, 2210072008 is an apocalyptic number.
It is an amenable number.
210072008 is a deficient number, since it is larger than the sum of its proper divisors (185856772).
210072008 is a wasteful number, since it uses less digits than its factorization.
210072008 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 136256 (or 136252 counting only the distinct ones).
The product of its (nonzero) digits is 224, while the sum is 20.
The square root of 210072008 is about 14493.8610452840. The cubic root of 210072008 is about 594.4601255970.
The spelling of 210072008 in words is "two hundred ten million, seventy-two thousand, eight".
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