Base | Representation |
---|---|
bin | 100111001101… |
… | …1100011001111 |
3 | 1102200120010102 |
4 | 1032123203033 |
5 | 20230410304 |
6 | 2012401315 |
7 | 336520631 |
oct | 116334317 |
9 | 42616112 |
10 | 20560079 |
11 | 10673101 |
12 | 6a7623b |
13 | 434b337 |
14 | 2a32a51 |
15 | 1c11d1e |
hex | 139b8cf |
20560079 has 2 divisors, whose sum is σ = 20560080. Its totient is φ = 20560078.
The previous prime is 20560069. The next prime is 20560081. The reversal of 20560079 is 97006502.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 20560079 - 216 = 20494543 is a prime.
Together with 20560081, it forms a pair of twin primes.
It is a Chen prime.
It is a pancake number, because a pancake can be divided into 20560079 parts by 6412 straight cuts.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (20560019) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10280039 + 10280040.
It is an arithmetic number, because the mean of its divisors is an integer number (10280040).
Almost surely, 220560079 is an apocalyptic number.
20560079 is a deficient number, since it is larger than the sum of its proper divisors (1).
20560079 is an equidigital number, since it uses as much as digits as its factorization.
20560079 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 3780, while the sum is 29.
The square root of 20560079 is about 4534.3223308450. The cubic root of 20560079 is about 273.9522844789.
The spelling of 20560079 in words is "twenty million, five hundred sixty thousand, seventy-nine".
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