Search a number
-
+
181834093486080 = 21336571773701
BaseRepresentation
bin101001010110000010001100…
…100011001110000000000000
3212211211011120121122021000000
4221112002030203032000000
5142313132210413023310
61442421232424000000
753205036226551360
oct5126021443160000
9784734517567000
10181834093486080
1152a35451405682
12184887ba000000
137a5cb5c6a9759
1432c8b6210a9a0
151604dc6e2a4c0
hexa5608c8ce000

181834093486080 has 3136 divisors, whose sum is σ = 803704069853568. Its totient is φ = 38526359961600.

The previous prime is 181834093486069. The next prime is 181834093486147. The reversal of 181834093486080 is 80684390438181.

181834093486080 is a `hidden beast` number, since 1 + 8 + 18 + 3 + 4 + 0 + 9 + 3 + 4 + 8 + 608 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a junction number, because it is equal to n+sod(n) for n = 181834093485999 and 181834093486017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 223 ways as a sum of consecutive naturals, for example, 259392429730 + ... + 259392430430.

Almost surely, 2181834093486080 is an apocalyptic number.

181834093486080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 181834093486080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (401852034926784).

181834093486080 is an abundant number, since it is smaller than the sum of its proper divisors (621869976367488).

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

181834093486080 is an frugal number, since it uses more digits than its factorization.

181834093486080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 847 (or 808 counting only the distinct ones).

The product of its (nonzero) digits is 31850496, while the sum is 63.

The spelling of 181834093486080 in words is "one hundred eighty-one trillion, eight hundred thirty-four billion, ninety-three million, four hundred eighty-six thousand, eighty".