Base | Representation |
---|---|
bin | 1001100100010… |
… | …11100010100011 |
3 | 12121000210120222 |
4 | 10302023202203 |
5 | 131021411311 |
6 | 11544153255 |
7 | 1663140611 |
oct | 462134243 |
9 | 177023528 |
10 | 80263331 |
11 | 41341035 |
12 | 22a6882b |
13 | 138231c5 |
14 | a9346b1 |
15 | 70a6adb |
hex | 4c8b8a3 |
80263331 has 2 divisors, whose sum is σ = 80263332. Its totient is φ = 80263330.
The previous prime is 80263321. The next prime is 80263333. The reversal of 80263331 is 13336208.
It is a strong prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-80263331 is a prime.
It is a super-2 number, since 2×802633312 = 12884404606431122, which contains 22 as substring.
Together with 80263333, it forms a pair of twin primes.
It is a Chen prime.
It is a self number, because there is not a number n which added to its sum of digits gives 80263331.
It is not a weakly prime, because it can be changed into another prime (80263333) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40131665 + 40131666.
It is an arithmetic number, because the mean of its divisors is an integer number (40131666).
Almost surely, 280263331 is an apocalyptic number.
80263331 is a deficient number, since it is larger than the sum of its proper divisors (1).
80263331 is an equidigital number, since it uses as much as digits as its factorization.
80263331 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 2592, while the sum is 26.
The square root of 80263331 is about 8958.9804665486. The cubic root of 80263331 is about 431.3591947532.
Adding to 80263331 its reverse (13336208), we get a palindrome (93599539).
The spelling of 80263331 in words is "eighty million, two hundred sixty-three thousand, three hundred thirty-one".
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