Base | Representation |
---|---|
bin | 111011111111111… |
… | …1001101110011100 |
3 | 12012022021012101121 |
4 | 1313333321232130 |
5 | 13110342141340 |
6 | 531434420324 |
7 | 100614155005 |
oct | 16777715634 |
9 | 5168235347 |
10 | 2013240220 |
11 | 9434701a2 |
12 | 4822916a4 |
13 | 261131a04 |
14 | 1515441ac |
15 | bbb2a94a |
hex | 77ff9b9c |
2013240220 has 48 divisors (see below), whose sum is σ = 4431718368. Its totient is φ = 767370240.
The previous prime is 2013240197. The next prime is 2013240239. The reversal of 2013240220 is 220423102.
It is a junction number, because it is equal to n+sod(n) for n = 2013240194 and 2013240203.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (23) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6712 + ... + 63808.
It is an arithmetic number, because the mean of its divisors is an integer number (92327466).
Almost surely, 22013240220 is an apocalyptic number.
2013240220 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 2013240220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2215859184).
2013240220 is an abundant number, since it is smaller than the sum of its proper divisors (2418478148).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2013240220 is a wasteful number, since it uses less digits than its factorization.
2013240220 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 57190 (or 57188 counting only the distinct ones).
The product of its (nonzero) digits is 192, while the sum is 16.
The square root of 2013240220 is about 44869.1455233995. The cubic root of 2013240220 is about 1262.6952091053.
Adding to 2013240220 its reverse (220423102), we get a palindrome (2233663322).
The spelling of 2013240220 in words is "two billion, thirteen million, two hundred forty thousand, two hundred twenty".
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