Search a number
-
+
810500058881 = 14812084926249
BaseRepresentation
bin10111100101101011001…
…00010110111100000001
32212111001010211222221022
423302311210112330001
5101234401003341011
61420201045035225
7112361642554412
oct13626544267401
92774033758838
10810500058881
11292805176407
121110b69b5b15
135b57843c976
142b32aa97809
151613a02a8db
hexbcb5916f01

810500058881 has 8 divisors (see below), whose sum is σ = 811117125000. Its totient is φ = 809883089920.

The previous prime is 810500058869. The next prime is 810500058883. The reversal of 810500058881 is 188850005018.

810500058881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 379486800625 + 431013258256 = 616025^2 + 656516^2 .

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 810500058881 - 214 = 810500042497 is a prime.

It is a super-2 number, since 2×8105000588812 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (810500058883) 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, 30864245 + ... + 30890493.

It is an arithmetic number, because the mean of its divisors is an integer number (101389640625).

Almost surely, 2810500058881 is an apocalyptic number.

It is an amenable number.

810500058881 is a deficient number, since it is larger than the sum of its proper divisors (617066119).

810500058881 is a wasteful number, since it uses less digits than its factorization.

810500058881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48579.

The product of its (nonzero) digits is 102400, while the sum is 44.

The spelling of 810500058881 in words is "eight hundred ten billion, five hundred million, fifty-eight thousand, eight hundred eighty-one".

Divisors: 1 1481 20849 26249 30877369 38874769 547265401 810500058881