Base | Representation |
---|---|
bin | 1010100010001111001… |
… | …1100101100011110100 |
3 | 122022011110101201022000 |
4 | 2220203303211203310 |
5 | 10431131233232210 |
6 | 215051221535300 |
7 | 16035041052540 |
oct | 2504363454364 |
9 | 568143351260 |
10 | 180989352180 |
11 | 6a83685310a |
12 | 2b0b0b74530 |
13 | 140b48c4040 |
14 | 8a8d374a20 |
15 | 4a944d4ac0 |
hex | 2a23ce58f4 |
180989352180 has 384 divisors, whose sum is σ = 694344268800. Its totient is φ = 38113763328.
The previous prime is 180989352157. The next prime is 180989352197. The reversal of 180989352180 is 81253989081.
180989352180 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a Harshad number since it is a multiple of its sum of digits (54).
It is a congruent number.
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 127 ways as a sum of consecutive naturals, for example, 27957424 + ... + 27963896.
It is an arithmetic number, because the mean of its divisors is an integer number (1808188200).
Almost surely, 2180989352180 is an apocalyptic number.
180989352180 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 180989352180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (347172134400).
180989352180 is an abundant number, since it is smaller than the sum of its proper divisors (513354916620).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
180989352180 is a wasteful number, since it uses less digits than its factorization.
180989352180 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 7080 (or 7072 counting only the distinct ones).
The product of its (nonzero) digits is 1244160, while the sum is 54.
The spelling of 180989352180 in words is "one hundred eighty billion, nine hundred eighty-nine million, three hundred fifty-two thousand, one hundred eighty".
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