Base | Representation |
---|---|
bin | 111100001101001… |
… | …0010110100110001 |
3 | 12012210021200212011 |
4 | 1320122102310301 |
5 | 13114130040034 |
6 | 532243002521 |
7 | 101030031466 |
oct | 17032226461 |
9 | 5183250764 |
10 | 2020158769 |
11 | 947366202 |
12 | 484669441 |
13 | 2626b4b25 |
14 | 15242566d |
15 | bc545864 |
hex | 78692d31 |
2020158769 has 2 divisors, whose sum is σ = 2020158770. Its totient is φ = 2020158768.
The previous prime is 2020158731. The next prime is 2020158781. The reversal of 2020158769 is 9678510202.
It is a strong prime.
It can be written as a sum of positive squares in only one way, i.e., 1926068769 + 94090000 = 43887^2 + 9700^2 .
It is a cyclic number.
It is not a de Polignac number, because 2020158769 - 213 = 2020150577 is a prime.
It is a super-2 number, since 2×20201587692 = 8162082903935190722, which contains 22 as substring.
It is not a weakly prime, because it can be changed into another prime (2020158719) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010079384 + 1010079385.
It is an arithmetic number, because the mean of its divisors is an integer number (1010079385).
Almost surely, 22020158769 is an apocalyptic number.
It is an amenable number.
2020158769 is a deficient number, since it is larger than the sum of its proper divisors (1).
2020158769 is an equidigital number, since it uses as much as digits as its factorization.
2020158769 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 60480, while the sum is 40.
The square root of 2020158769 is about 44946.1763557257. The cubic root of 2020158769 is about 1264.1399829697.
The spelling of 2020158769 in words is "two billion, twenty million, one hundred fifty-eight thousand, seven hundred sixty-nine".
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