Base | Representation |
---|---|
bin | 1001000011101… |
… | …01110111000111 |
3 | 12021222012021122 |
4 | 10201311313013 |
5 | 123422331411 |
6 | 11312304155 |
7 | 1611551465 |
oct | 441656707 |
9 | 167865248 |
10 | 75980231 |
11 | 39986088 |
12 | 2154205b |
13 | 12983822 |
14 | a13b835 |
15 | 6a0c9db |
hex | 4875dc7 |
75980231 has 2 divisors, whose sum is σ = 75980232. Its totient is φ = 75980230.
The previous prime is 75980227. The next prime is 75980237. The reversal of 75980231 is 13208957.
It is a weak prime.
It is an emirp because it is prime and its reverse (13208957) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 75980231 - 22 = 75980227 is a prime.
It is a super-2 number, since 2×759802312 = 11545991005626722, which contains 22 as substring.
It is a Sophie Germain prime.
It is a junction number, because it is equal to n+sod(n) for n = 75980191 and 75980200.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (75980237) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37990115 + 37990116.
It is an arithmetic number, because the mean of its divisors is an integer number (37990116).
Almost surely, 275980231 is an apocalyptic number.
75980231 is a deficient number, since it is larger than the sum of its proper divisors (1).
75980231 is an equidigital number, since it uses as much as digits as its factorization.
75980231 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 15120, while the sum is 35.
The square root of 75980231 is about 8716.6639834285. The cubic root of 75980231 is about 423.5456280491.
The spelling of 75980231 in words is "seventy-five million, nine hundred eighty thousand, two hundred thirty-one".
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