Base | Representation |
---|---|
bin | 111100100000110… |
… | …0100101010000111 |
3 | 12020111122211020000 |
4 | 1321001210222013 |
5 | 13124244033211 |
6 | 533251412343 |
7 | 101213405064 |
oct | 17101445207 |
9 | 5214584200 |
10 | 2030455431 |
11 | 952159244 |
12 | 487bb40b3 |
13 | 26487b724 |
14 | 153945c6b |
15 | bd3cb656 |
hex | 79064a87 |
2030455431 has 20 divisors (see below), whose sum is σ = 3039436752. Its totient is φ = 1350831168.
The previous prime is 2030455417. The next prime is 2030455439. The reversal of 2030455431 is 1345540302.
2030455431 is a `hidden beast` number, since 203 + 0 + 455 + 4 + 3 + 1 = 666.
It is not a de Polignac number, because 2030455431 - 218 = 2030193287 is a prime.
It is a super-2 number, since 2×20304554312 = 8245498514554791522, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a junction number, because it is equal to n+sod(n) for n = 2030455395 and 2030455404.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2030455439) by changing a digit.
It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 13711 + ... + 65183.
Almost surely, 22030455431 is an apocalyptic number.
2030455431 is a deficient number, since it is larger than the sum of its proper divisors (1008981321).
2030455431 is an equidigital number, since it uses as much as digits as its factorization.
2030455431 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 51972 (or 51963 counting only the distinct ones).
The product of its (nonzero) digits is 7200, while the sum is 27.
The square root of 2030455431 is about 45060.5751294854. The cubic root of 2030455431 is about 1266.2840998942.
Adding to 2030455431 its reverse (1345540302), we get a palindrome (3375995733).
The spelling of 2030455431 in words is "two billion, thirty million, four hundred fifty-five thousand, four hundred thirty-one".
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