Base | Representation |
---|---|
bin | 101010110100000000… |
… | …0101011011111110001 |
3 | 22210022102001110120012 |
4 | 1111220000223133301 |
5 | 3001242431244331 |
6 | 110123014424305 |
7 | 6433225225043 |
oct | 1255000533761 |
9 | 283272043505 |
10 | 91939321841 |
11 | 35a9a394314 |
12 | 1599a362095 |
13 | 8892842ab3 |
14 | 46426bda93 |
15 | 25d175582b |
hex | 156802b7f1 |
91939321841 has 8 divisors (see below), whose sum is σ = 92108398368. Its totient is φ = 91770300000.
The previous prime is 91939321823. The next prime is 91939321849. The reversal of 91939321841 is 14812393919.
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 91939321841 - 218 = 91939059697 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 91939321841.
It is not an unprimeable number, because it can be changed into a prime (91939321849) 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, 4973666 + ... + 4992116.
It is an arithmetic number, because the mean of its divisors is an integer number (11513549796).
Almost surely, 291939321841 is an apocalyptic number.
It is an amenable number.
91939321841 is a deficient number, since it is larger than the sum of its proper divisors (169076527).
91939321841 is a wasteful number, since it uses less digits than its factorization.
91939321841 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 27343.
The product of its digits is 419904, while the sum is 50.
The spelling of 91939321841 in words is "ninety-one billion, nine hundred thirty-nine million, three hundred twenty-one thousand, eight hundred forty-one".
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