Search a number
-
+
18593127008 = 251930580801
BaseRepresentation
bin10001010100001111…
…001001101001100000
31202222210020201022122
4101110033021221200
5301034320031013
612312551123412
71225516654241
oct212417115140
952883221278
1018593127008
117981376575
12372a973568
1319a4090a01
14c85504cc8
1573c4b9a08
hex4543c9a60

18593127008 has 24 divisors (see below), whose sum is σ = 38531810520. Its totient is φ = 8807270400.

The previous prime is 18593126983. The next prime is 18593127013. The reversal of 18593127008 is 80072139581.

It is a self number, because there is not a number n which added to its sum of digits gives 18593127008.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15289793 + ... + 15291008.

It is an arithmetic number, because the mean of its divisors is an integer number (1605492105).

Almost surely, 218593127008 is an apocalyptic number.

It is an amenable number.

18593127008 is an abundant number, since it is smaller than the sum of its proper divisors (19938683512).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18593127008 is a wasteful number, since it uses less digits than its factorization.

18593127008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30580830 (or 30580822 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 44.

The spelling of 18593127008 in words is "eighteen billion, five hundred ninety-three million, one hundred twenty-seven thousand, eight".

Divisors: 1 2 4 8 16 19 32 38 76 152 304 608 30580801 61161602 122323204 244646408 489292816 581035219 978585632 1162070438 2324140876 4648281752 9296563504 18593127008