Base | Representation |
---|---|
bin | 1011111110100001… |
… | …10100101100011111 |
3 | 121121010100002211111 |
4 | 11333100310230133 |
5 | 101132100140441 |
6 | 2542015002451 |
7 | 315225545131 |
oct | 57720645437 |
9 | 17533302744 |
10 | 6430083871 |
11 | 27aa684202 |
12 | 12b5509427 |
13 | 7b6211573 |
14 | 44dda5051 |
15 | 279790081 |
hex | 17f434b1f |
6430083871 has 4 divisors (see below), whose sum is σ = 6535495144. Its totient is φ = 6324672600.
The previous prime is 6430083853. The next prime is 6430083883. The reversal of 6430083871 is 1783800346.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1783800346 = 2 ⋅891900173.
It is a cyclic number.
It is not a de Polignac number, because 6430083871 - 219 = 6429559583 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (6430083851) 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, 52705545 + ... + 52705666.
It is an arithmetic number, because the mean of its divisors is an integer number (1633873786).
Almost surely, 26430083871 is an apocalyptic number.
6430083871 is a gapful number since it is divisible by the number (61) formed by its first and last digit.
6430083871 is a deficient number, since it is larger than the sum of its proper divisors (105411273).
6430083871 is a wasteful number, since it uses less digits than its factorization.
6430083871 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 105411272.
The product of its (nonzero) digits is 96768, while the sum is 40.
The square root of 6430083871 is about 80187.8037546858. The cubic root of 6430083871 is about 1859.5400904569.
The spelling of 6430083871 in words is "six billion, four hundred thirty million, eighty-three thousand, eight hundred seventy-one".
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