Base | Representation |
---|---|
bin | 1011000010110110000… |
… | …1010000110100000000 |
3 | 200010202110112021012021 |
4 | 2300231201100310000 |
5 | 11102043004132420 |
6 | 223055535011224 |
7 | 16464663362650 |
oct | 2605541206400 |
9 | 603673467167 |
10 | 189742255360 |
11 | 73518613899 |
12 | 30934369b14 |
13 | 14b7b10a1a8 |
14 | 927da28360 |
15 | 4e07b527aa |
hex | 2c2d850d00 |
189742255360 has 72 divisors (see below), whose sum is σ = 519419448576. Its totient is φ = 65054484480.
The previous prime is 189742255349. The next prime is 189742255369. The reversal of 189742255360 is 63552247981.
It is a junction number, because it is equal to n+sod(n) for n = 189742255298 and 189742255307.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (189742255369) by changing a digit.
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 7 ways as a sum of consecutive naturals, for example, 10579336 + ... + 10597255.
It is an arithmetic number, because the mean of its divisors is an integer number (7214159008).
It is a 1-persistent number, because it is pandigital, but 2⋅189742255360 = 379484510720 is not.
Almost surely, 2189742255360 is an apocalyptic number.
189742255360 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
It is an amenable number.
189742255360 is an abundant number, since it is smaller than the sum of its proper divisors (329677193216).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
189742255360 is an equidigital number, since it uses as much as digits as its factorization.
189742255360 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 21176619 (or 21176605 counting only the distinct ones).
The product of its (nonzero) digits is 3628800, while the sum is 52.
The spelling of 189742255360 in words is "one hundred eighty-nine billion, seven hundred forty-two million, two hundred fifty-five thousand, three hundred sixty".
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