Base | Representation |
---|---|
bin | 101000101101100011… |
… | …1100111011000111111 |
3 | 22100200000100001221221 |
4 | 1101123013213120333 |
5 | 2413023041201202 |
6 | 104055222534211 |
7 | 6213356216143 |
oct | 1213307473077 |
9 | 270600301857 |
10 | 87428068927 |
11 | 34094958221 |
12 | 14b3b597367 |
13 | 8324029384 |
14 | 43354c5223 |
15 | 241a693037 |
hex | 145b1e763f |
87428068927 has 2 divisors, whose sum is σ = 87428068928. Its totient is φ = 87428068926.
The previous prime is 87428068837. The next prime is 87428068951. The reversal of 87428068927 is 72986082478.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 87428068927 - 235 = 53068330559 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (87428068967) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43714034463 + 43714034464.
It is an arithmetic number, because the mean of its divisors is an integer number (43714034464).
Almost surely, 287428068927 is an apocalyptic number.
87428068927 is a deficient number, since it is larger than the sum of its proper divisors (1).
87428068927 is an equidigital number, since it uses as much as digits as its factorization.
87428068927 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 21676032, while the sum is 61.
The spelling of 87428068927 in words is "eighty-seven billion, four hundred twenty-eight million, sixty-eight thousand, nine hundred twenty-seven".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.090 sec. • engine limits •