Base | Representation |
---|---|
bin | 1110100001110111… |
… | …11000000110000001 |
3 | 202010121200112120201 |
4 | 13100323320012001 |
5 | 111433340340411 |
6 | 3330004005201 |
7 | 364204443535 |
oct | 72073700601 |
9 | 22117615521 |
10 | 7800324481 |
11 | 3343097264 |
12 | 1618390801 |
13 | 974070721 |
14 | 53dd6bbc5 |
15 | 309c073c1 |
hex | 1d0ef8181 |
7800324481 has 2 divisors, whose sum is σ = 7800324482. Its totient is φ = 7800324480.
The previous prime is 7800324463. The next prime is 7800324491. The reversal of 7800324481 is 1844230087.
7800324481 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 6429473856 + 1370850625 = 80184^2 + 37025^2 .
It is a cyclic number.
It is not a de Polignac number, because 7800324481 - 213 = 7800316289 is a prime.
It is a super-2 number, since 2×78003244812 (a number of 21 digits) contains 22 as substring.
It is a self number, because there is not a number n which added to its sum of digits gives 7800324481.
It is not a weakly prime, because it can be changed into another prime (7800324401) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3900162240 + 3900162241.
It is an arithmetic number, because the mean of its divisors is an integer number (3900162241).
Almost surely, 27800324481 is an apocalyptic number.
It is an amenable number.
7800324481 is a deficient number, since it is larger than the sum of its proper divisors (1).
7800324481 is an equidigital number, since it uses as much as digits as its factorization.
7800324481 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 43008, while the sum is 37.
The square root of 7800324481 is about 88319.4456560955. The cubic root of 7800324481 is about 1983.2199826533.
The spelling of 7800324481 in words is "seven billion, eight hundred million, three hundred twenty-four thousand, four hundred eighty-one".
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