Base | Representation |
---|---|
bin | 111101001100… |
… | …0010001011111 |
3 | 2020100212211212 |
4 | 1322120101133 |
5 | 31203042431 |
6 | 3103335035 |
7 | 536453405 |
oct | 172302137 |
9 | 66325755 |
10 | 32080991 |
11 | 17121a18 |
12 | a8b147b |
13 | 6853247 |
14 | 4391475 |
15 | 2c3a72b |
hex | 1e9845f |
32080991 has 2 divisors, whose sum is σ = 32080992. Its totient is φ = 32080990.
The previous prime is 32080981. The next prime is 32081009. The reversal of 32080991 is 19908023.
It is a weak prime.
It is an emirp because it is prime and its reverse (19908023) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 32080991 - 218 = 31818847 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (32080981) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16040495 + 16040496.
It is an arithmetic number, because the mean of its divisors is an integer number (16040496).
Almost surely, 232080991 is an apocalyptic number.
32080991 is a deficient number, since it is larger than the sum of its proper divisors (1).
32080991 is an equidigital number, since it uses as much as digits as its factorization.
32080991 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 3888, while the sum is 32.
The square root of 32080991 is about 5664.0083862932. The cubic root of 32080991 is about 317.7478289062.
The spelling of 32080991 in words is "thirty-two million, eighty thousand, nine hundred ninety-one".
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