Base | Representation |
---|---|
bin | 111111100010010… |
… | …0000000000000000 |
3 | 12111120112000220201 |
4 | 1333010200000000 |
5 | 13331230323310 |
6 | 551313414544 |
7 | 103554506212 |
oct | 17704400000 |
9 | 5446460821 |
10 | 2131886080 |
11 | 9a4437625 |
12 | 4b5b6a454 |
13 | 27c8a346c |
14 | 1631ca5b2 |
15 | c7264e3a |
hex | 7f120000 |
2131886080 has 72 divisors (see below), whose sum is σ = 5118079932. Its totient is φ = 852492288.
The previous prime is 2131886059. The next prime is 2131886131. The reversal of 2131886080 is 806881312.
It can be written as a sum of positive squares in 2 ways, for example, as 1961426944 + 170459136 = 44288^2 + 13056^2 .
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 653734 + ... + 656986.
Almost surely, 22131886080 is an apocalyptic number.
2131886080 is a gapful number since it is divisible by the number (20) 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 2131886080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2559039966).
2131886080 is an abundant number, since it is smaller than the sum of its proper divisors (2986193852).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2131886080 is an frugal number, since it uses more digits than its factorization.
2131886080 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3292 (or 3260 counting only the distinct ones).
The product of its (nonzero) digits is 18432, while the sum is 37.
The square root of 2131886080 is about 46172.3519002444. The cubic root of 2131886080 is about 1287.0280078435.
The spelling of 2131886080 in words is "two billion, one hundred thirty-one million, eight hundred eighty-six thousand, eighty".
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