Search a number
-
+
54771808936 = 2313261965447
BaseRepresentation
bin110011000000101001…
…110111101010101000
312020101010211011220011
4303000221313222220
51344133040341221
641054541541304
73646203460105
oct630051675250
9166333734804
1054771808936
11212572927a9
12a746b74834
13521b553800
142918391aac
1516587741e1
hexcc0a77aa8

54771808936 has 48 divisors (see below), whose sum is σ = 111385951200. Its totient is φ = 25238071872.

The previous prime is 54771808919. The next prime is 54771808937. The reversal of 54771808936 is 63980817745.

It is not an unprimeable number, because it can be changed into a prime (54771808937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 804165 + ... + 869611.

It is an arithmetic number, because the mean of its divisors is an integer number (2320540650).

Almost surely, 254771808936 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54771808936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55692975600).

54771808936 is an abundant number, since it is smaller than the sum of its proper divisors (56614142264).

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

54771808936 is a wasteful number, since it uses less digits than its factorization.

54771808936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66098 (or 66081 counting only the distinct ones).

The product of its (nonzero) digits is 10160640, while the sum is 58.

The spelling of 54771808936 in words is "fifty-four billion, seven hundred seventy-one million, eight hundred eight thousand, nine hundred thirty-six".

Divisors: 1 2 4 8 13 26 52 104 169 338 619 676 1238 1352 2476 4952 8047 16094 32188 64376 65447 104611 130894 209222 261788 418444 523576 836888 850811 1701622 3403244 6806488 11060543 22121086 40511693 44242172 81023386 88484344 162046772 324093544 526652009 1053304018 2106608036 4213216072 6846476117 13692952234 27385904468 54771808936