Search a number
-
+
181800301830336 = 26327291554805537
BaseRepresentation
bin101001010101100010101110…
…011010010010000011000000
3212211200221100121200021202200
4221111202232122102003000
5142312104004232032321
61442353523343313200
753202431646325530
oct5125425632220300
9784627317607680
10181800301830336
1152a2209094a562
12184821492ab800
137a5990590c297
1432c72782a34c0
15160409a4d2d26
hexa558ae6920c0

181800301830336 has 168 divisors, whose sum is σ = 616076146377120. Its totient is φ = 50151807369216.

The previous prime is 181800301830299. The next prime is 181800301830347. The reversal of 181800301830336 is 633038103008181.

181800301830336 is a `hidden beast` number, since 1 + 8 + 1 + 8 + 0 + 0 + 301 + 8 + 3 + 0 + 336 = 666.

It is a tau number, because it is divible by the number of its divisors (168).

It is a junction number, because it is equal to n+sod(n) for n = 181800301830291 and 181800301830300.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 777285841 + ... + 777519696.

Almost surely, 2181800301830336 is an apocalyptic number.

181800301830336 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

181800301830336 is an abundant number, since it is smaller than the sum of its proper divisors (434275844546784).

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

181800301830336 is a wasteful number, since it uses less digits than its factorization.

181800301830336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1554805591 (or 1554805578 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The spelling of 181800301830336 in words is "one hundred eighty-one trillion, eight hundred billion, three hundred one million, eight hundred thirty thousand, three hundred thirty-six".