Base | Representation |
---|---|
bin | 10010101101001111… |
… | …111000011001110101 |
3 | 1220211212021110020112 |
4 | 102231033320121311 |
5 | 312114120200431 |
6 | 13121055112405 |
7 | 1310522232332 |
oct | 225517703165 |
9 | 56755243215 |
10 | 20086490741 |
11 | 8578333879 |
12 | 3a86b12705 |
13 | 1b8159b4a5 |
14 | d8799b989 |
15 | 7c8652c2b |
hex | 4ad3f8675 |
20086490741 has 2 divisors, whose sum is σ = 20086490742. Its totient is φ = 20086490740.
The previous prime is 20086490729. The next prime is 20086490843. The reversal of 20086490741 is 14709468002.
It is a weak prime.
It can be written as a sum of positive squares in only one way, i.e., 11085984100 + 9000506641 = 105290^2 + 94871^2 .
It is a cyclic number.
It is not a de Polignac number, because 20086490741 - 214 = 20086474357 is a prime.
It is a super-2 number, since 2×200864907412 (a number of 21 digits) contains 22 as substring.
It is a Sophie Germain prime.
It is a Curzon number.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (20086490701) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10043245370 + 10043245371.
It is an arithmetic number, because the mean of its divisors is an integer number (10043245371).
Almost surely, 220086490741 is an apocalyptic number.
It is an amenable number.
20086490741 is a deficient number, since it is larger than the sum of its proper divisors (1).
20086490741 is an equidigital number, since it uses as much as digits as its factorization.
20086490741 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 96768, while the sum is 41.
The spelling of 20086490741 in words is "twenty billion, eighty-six million, four hundred ninety thousand, seven hundred forty-one".
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