Base | Representation |
---|---|
bin | 100111111011000111… |
… | …110000000000100010 |
3 | 11002122112100210221121 |
4 | 213323013300000202 |
5 | 1200243130143110 |
6 | 31405422042454 |
7 | 3045206305525 |
oct | 477307600042 |
9 | 132575323847 |
10 | 42867818530 |
11 | 171a88475a9 |
12 | 838441942a |
13 | 40722663c4 |
14 | 2109406bbc |
15 | 11ad66acda |
hex | 9fb1f0022 |
42867818530 has 32 divisors (see below), whose sum is σ = 79365748464. Its totient is φ = 16658804736.
The previous prime is 42867818519. The next prime is 42867818533. The reversal of 42867818530 is 3581876824.
It can be written as a sum of positive squares in 8 ways, for example, as 25648342801 + 17219475729 = 160151^2 + 131223^2 .
It is a super-2 number, since 2×428678185302 (a number of 22 digits) contains 22 as substring.
It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.
It is not an unprimeable number, because it can be changed into a prime (42867818533) 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, 162934 + ... + 335086.
Almost surely, 242867818530 is an apocalyptic number.
42867818530 is a deficient number, since it is larger than the sum of its proper divisors (36497929934).
42867818530 is a wasteful number, since it uses less digits than its factorization.
42867818530 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 172870.
The product of its (nonzero) digits is 2580480, while the sum is 52.
The spelling of 42867818530 in words is "forty-two billion, eight hundred sixty-seven million, eight hundred eighteen thousand, five hundred thirty".
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