Search a number
-
+
108549831144 = 23318124988451
BaseRepresentation
bin110010100011000010…
…0101111100111101000
3101101012000122202200110
41211012010233213220
53234302224044034
6121511143334320
710561652224626
oct1450604574750
9341160582613
10108549831144
1142043605857
12190551513a0
13a30bc34221
14537a772516
152c54b42de9
hex194612f9e8

108549831144 has 32 divisors (see below), whose sum is σ = 272873895840. Its totient is φ = 35983368000.

The previous prime is 108549831119. The next prime is 108549831149. The reversal of 108549831144 is 441138945801.

It is a junction number, because it is equal to n+sod(n) for n = 108549831093 and 108549831102.

It is not an unprimeable number, because it can be changed into a prime (108549831149) 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, 12489882 + ... + 12498569.

It is an arithmetic number, because the mean of its divisors is an integer number (8527309245).

Almost surely, 2108549831144 is an apocalyptic number.

It is an amenable number.

108549831144 is an abundant number, since it is smaller than the sum of its proper divisors (164324064696).

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

108549831144 is a wasteful number, since it uses less digits than its factorization.

108549831144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24988641 (or 24988637 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 48.

The spelling of 108549831144 in words is "one hundred eight billion, five hundred forty-nine million, eight hundred thirty-one thousand, one hundred forty-four".

Divisors: 1 2 3 4 6 8 12 24 181 362 543 724 1086 1448 2172 4344 24988451 49976902 74965353 99953804 149930706 199907608 299861412 599722824 4522909631 9045819262 13568728893 18091638524 27137457786 36183277048 54274915572 108549831144