Base | Representation |
---|---|
bin | 10011010100110011… |
… | …000100001000110111 |
3 | 1222120002211111111111 |
4 | 103110303010020313 |
5 | 314444001302041 |
6 | 13311001015451 |
7 | 1333130206333 |
oct | 232463041067 |
9 | 58502744444 |
10 | 20750025271 |
11 | 8888937118 |
12 | 4031184587 |
13 | 1c58bb0a81 |
14 | 100bb627c3 |
15 | 816a20981 |
hex | 4d4cc4237 |
20750025271 has 2 divisors, whose sum is σ = 20750025272. Its totient is φ = 20750025270.
The previous prime is 20750025269. The next prime is 20750025293. The reversal of 20750025271 is 17252005702.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 20750025271 - 21 = 20750025269 is a prime.
Together with 20750025269, it forms a pair of twin primes.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (20750025251) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10375012635 + 10375012636.
It is an arithmetic number, because the mean of its divisors is an integer number (10375012636).
Almost surely, 220750025271 is an apocalyptic number.
20750025271 is a deficient number, since it is larger than the sum of its proper divisors (1).
20750025271 is an equidigital number, since it uses as much as digits as its factorization.
20750025271 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 9800, while the sum is 31.
The spelling of 20750025271 in words is "twenty billion, seven hundred fifty million, twenty-five thousand, two hundred seventy-one".
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