Base | Representation |
---|---|
bin | 1001001011010101000010… |
… | …00101010100000000000000 |
3 | 2122110020021212200111022220 |
4 | 10211222201011110000000 |
5 | 10121114034433143044 |
6 | 110530435210131040 |
7 | 4151663404140351 |
oct | 445524105240000 |
9 | 78406255614286 |
10 | 20180458881024 |
11 | 6480536a31332 |
12 | 231b136a20a80 |
13 | b35017014400 |
14 | 4daa4cd87d28 |
15 | 24ee179d4019 |
hex | 125aa1154000 |
20180458881024 has 360 divisors, whose sum is σ = 58395153845952. Its totient is φ = 6196124712960.
The previous prime is 20180458881013. The next prime is 20180458881041. The reversal of 20180458881024 is 42018885408102.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4327782117 + ... + 4327786779.
Almost surely, 220180458881024 is an apocalyptic number.
20180458881024 is a gapful number since it is divisible by the number (24) 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 20180458881024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29197576922976).
20180458881024 is an abundant number, since it is smaller than the sum of its proper divisors (38214694964928).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
20180458881024 is an equidigital number, since it uses as much as digits as its factorization.
20180458881024 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 5241 (or 5202 counting only the distinct ones).
The product of its (nonzero) digits is 1310720, while the sum is 51.
The spelling of 20180458881024 in words is "twenty trillion, one hundred eighty billion, four hundred fifty-eight million, eight hundred eighty-one thousand, twenty-four".
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