Base | Representation |
---|---|
bin | 10010101101001010… |
… | …010010100011000001 |
3 | 1220211202111222120101 |
4 | 102231022102203001 |
5 | 312113231244321 |
6 | 13121003442401 |
7 | 1310503616041 |
oct | 225512224301 |
9 | 56752458511 |
10 | 20085024961 |
11 | 8577522591 |
12 | 3a86526401 |
13 | 1b811a7271 |
14 | d876d9721 |
15 | 7c8463791 |
hex | 4ad2928c1 |
20085024961 has 8 divisors (see below), whose sum is σ = 20946673664. Its totient is φ = 19236735360.
The previous prime is 20085024959. The next prime is 20085024977. The reversal of 20085024961 is 16942058002.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 20085024961 - 21 = 20085024959 is a prime.
It is a Duffinian number.
It is a self number, because there is not a number n which added to its sum of digits gives 20085024961.
It is not an unprimeable number, because it can be changed into a prime (20085024461) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3336705 + ... + 3342718.
It is an arithmetic number, because the mean of its divisors is an integer number (2618334208).
Almost surely, 220085024961 is an apocalyptic number.
It is an amenable number.
20085024961 is a deficient number, since it is larger than the sum of its proper divisors (861648703).
20085024961 is an equidigital number, since it uses as much as digits as its factorization.
20085024961 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6679551.
The product of its (nonzero) digits is 34560, while the sum is 37.
The spelling of 20085024961 in words is "twenty billion, eighty-five million, twenty-four thousand, nine hundred sixty-one".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.068 sec. • engine limits •