Base | Representation |
---|---|
bin | 1001100011010… |
… | …11001111010011 |
3 | 12120210002002211 |
4 | 10301223033103 |
5 | 131003143102 |
6 | 11541252551 |
7 | 1662050104 |
oct | 461531723 |
9 | 176702084 |
10 | 80131027 |
11 | 41260699 |
12 | 22a04157 |
13 | 137a7c12 |
14 | a8dc3ab |
15 | 707c7d7 |
hex | 4c6b3d3 |
80131027 has 4 divisors (see below), whose sum is σ = 81489240. Its totient is φ = 78772816.
The previous prime is 80130983. The next prime is 80131039. The reversal of 80131027 is 72013108.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-80131027 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 80130989 and 80131007.
It is not an unprimeable number, because it can be changed into a prime (80131067) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 679018 + ... + 679135.
It is an arithmetic number, because the mean of its divisors is an integer number (20372310).
Almost surely, 280131027 is an apocalyptic number.
80131027 is a deficient number, since it is larger than the sum of its proper divisors (1358213).
80131027 is a wasteful number, since it uses less digits than its factorization.
80131027 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1358212.
The product of its (nonzero) digits is 336, while the sum is 22.
The square root of 80131027 is about 8951.5935452857. The cubic root of 80131027 is about 431.1220506227.
The spelling of 80131027 in words is "eighty million, one hundred thirty-one thousand, twenty-seven".
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