Base | Representation |
---|---|
bin | 100110100111… |
… | …1000000001011 |
3 | 1102002122000211 |
4 | 1031033000023 |
5 | 20140342124 |
6 | 2001541551 |
7 | 334043545 |
oct | 115170013 |
9 | 42078024 |
10 | 20246539 |
11 | 10479585 |
12 | 69448b7 |
13 | 426b701 |
14 | 2990695 |
15 | 1b9de94 |
hex | 134f00b |
20246539 has 2 divisors, whose sum is σ = 20246540. Its totient is φ = 20246538.
The previous prime is 20246491. The next prime is 20246557. The reversal of 20246539 is 93564202.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 20246539 - 211 = 20244491 is a prime.
It is a self number, because there is not a number n which added to its sum of digits gives 20246539.
It is not a weakly prime, because it can be changed into another prime (20246599) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10123269 + 10123270.
It is an arithmetic number, because the mean of its divisors is an integer number (10123270).
Almost surely, 220246539 is an apocalyptic number.
20246539 is a deficient number, since it is larger than the sum of its proper divisors (1).
20246539 is an equidigital number, since it uses as much as digits as its factorization.
20246539 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 12960, while the sum is 31.
The square root of 20246539 is about 4499.6154280116. The cubic root of 20246539 is about 272.5525595107.
The spelling of 20246539 in words is "twenty million, two hundred forty-six thousand, five hundred thirty-nine".
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