Base | Representation |
---|---|
bin | 100101101000111011… |
… | …1010110000010001111 |
3 | 21201122012120121112220 |
4 | 1023101313112002033 |
5 | 2311020032421042 |
6 | 101044415030423 |
7 | 5561023463244 |
oct | 1132167260217 |
9 | 251565517486 |
10 | 80830357647 |
11 | 313096a2076 |
12 | 137b9b0b413 |
13 | 78121866c0 |
14 | 3cab1675cb |
15 | 21813408ec |
hex | 12d1dd608f |
80830357647 has 16 divisors (see below), whose sum is σ = 116243527680. Its totient is φ = 49664862432.
The previous prime is 80830357639. The next prime is 80830357651. The reversal of 80830357647 is 74675303808.
It is not a de Polignac number, because 80830357647 - 23 = 80830357639 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 80830357647.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80830357627) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1576447 + ... + 1626912.
It is an arithmetic number, because the mean of its divisors is an integer number (7265220480).
Almost surely, 280830357647 is an apocalyptic number.
80830357647 is a deficient number, since it is larger than the sum of its proper divisors (35413170033).
80830357647 is a wasteful number, since it uses less digits than its factorization.
80830357647 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3204022.
The product of its (nonzero) digits is 3386880, while the sum is 51.
The spelling of 80830357647 in words is "eighty billion, eight hundred thirty million, three hundred fifty-seven thousand, six hundred forty-seven".
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