Base | Representation |
---|---|
bin | 100101100101111110… |
… | …0010000101001010101 |
3 | 21201101021120212011022 |
4 | 1023023330100221111 |
5 | 2310314112423442 |
6 | 101030505050525 |
7 | 5555406014240 |
oct | 1131374205125 |
9 | 251337525138 |
10 | 80730982997 |
11 | 31268598465 |
12 | 13790786a45 |
13 | 77c7701732 |
14 | 3c9bc9a257 |
15 | 21777613d2 |
hex | 12cbf10a55 |
80730982997 has 8 divisors (see below), whose sum is σ = 96275458176. Its totient is φ = 66189377232.
The previous prime is 80730982991. The next prime is 80730982999. The reversal of 80730982997 is 79928903708.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 80730982997 - 28 = 80730982741 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (80730982991) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 250717178 + ... + 250717499.
It is an arithmetic number, because the mean of its divisors is an integer number (12034432272).
Almost surely, 280730982997 is an apocalyptic number.
It is an amenable number.
80730982997 is a deficient number, since it is larger than the sum of its proper divisors (15544475179).
80730982997 is a wasteful number, since it uses less digits than its factorization.
80730982997 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 501434707.
The product of its (nonzero) digits is 13716864, while the sum is 62.
The spelling of 80730982997 in words is "eighty billion, seven hundred thirty million, nine hundred eighty-two thousand, nine hundred ninety-seven".
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