Base | Representation |
---|---|
bin | 111100001111001… |
… | …0001000010000111 |
3 | 12012212020121011112 |
4 | 1320132101002013 |
5 | 13114411400012 |
6 | 532321155235 |
7 | 101041626251 |
oct | 17036210207 |
9 | 5185217145 |
10 | 2021200007 |
11 | 947a07532 |
12 | 484a8bb1b |
13 | 26298aa48 |
14 | 152616cd1 |
15 | bc69e122 |
hex | 78791087 |
2021200007 has 2 divisors, whose sum is σ = 2021200008. Its totient is φ = 2021200006.
The previous prime is 2021199967. The next prime is 2021200021. The reversal of 2021200007 is 7000021202.
It is an a-pointer prime, because the next prime (2021200021) can be obtained adding 2021200007 to its sum of digits (14).
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 2021200007 - 222 = 2017005703 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 2021199964 and 2021200000.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (2021500007) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010600003 + 1010600004.
It is an arithmetic number, because the mean of its divisors is an integer number (1010600004).
Almost surely, 22021200007 is an apocalyptic number.
2021200007 is a deficient number, since it is larger than the sum of its proper divisors (1).
2021200007 is an equidigital number, since it uses as much as digits as its factorization.
2021200007 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 56, while the sum is 14.
The square root of 2021200007 is about 44957.7580290655. The cubic root of 2021200007 is about 1264.3571349623.
Adding to 2021200007 its reverse (7000021202), we get a palindrome (9021221209).
The spelling of 2021200007 in words is "two billion, twenty-one million, two hundred thousand, seven".
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