Base | Representation |
---|---|
bin | 100101100100011010… |
… | …0000000011000011111 |
3 | 21201020121210210222201 |
4 | 1023020310000120133 |
5 | 2310212143100313 |
6 | 101021351552331 |
7 | 5554200554341 |
oct | 1131064003037 |
9 | 251217723881 |
10 | 80678487583 |
11 | 312409a2921 |
12 | 1377708b6a7 |
13 | 77b9881565 |
14 | 3c94d13291 |
15 | 2172d420dd |
hex | 12c8d0061f |
80678487583 has 2 divisors, whose sum is σ = 80678487584. Its totient is φ = 80678487582.
The previous prime is 80678487581. The next prime is 80678487611. The reversal of 80678487583 is 38578487608.
It is a happy number.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 80678487583 - 21 = 80678487581 is a prime.
Together with 80678487581, it forms a pair of twin primes.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (80678487581) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40339243791 + 40339243792.
It is an arithmetic number, because the mean of its divisors is an integer number (40339243792).
Almost surely, 280678487583 is an apocalyptic number.
80678487583 is a deficient number, since it is larger than the sum of its proper divisors (1).
80678487583 is an equidigital number, since it uses as much as digits as its factorization.
80678487583 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 72253440, while the sum is 64.
The spelling of 80678487583 in words is "eighty billion, six hundred seventy-eight million, four hundred eighty-seven thousand, five hundred eighty-three".
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