Base | Representation |
---|---|
bin | 1011001000011001… |
… | …0100011000110100 |
3 | 21201020110011120001 |
4 | 2302012110120310 |
5 | 22104412011240 |
6 | 1212255121044 |
7 | 134021405440 |
oct | 26206243064 |
9 | 7636404501 |
10 | 2988000820 |
11 | 12a3715272 |
12 | 6b4813184 |
13 | 388072a2c |
14 | 204ba1820 |
15 | 1274c389a |
hex | b2194634 |
2988000820 has 96 divisors (see below), whose sum is σ = 7314531840. Its totient is φ = 1004106240.
The previous prime is 2988000797. The next prime is 2988000833. The reversal of 2988000820 is 280008892.
It is a self number, because there is not a number n which added to its sum of digits gives 2988000820.
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 31 ways as a sum of consecutive naturals, for example, 3748662 + ... + 3749458.
It is an arithmetic number, because the mean of its divisors is an integer number (76193040).
Almost surely, 22988000820 is an apocalyptic number.
2988000820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
2988000820 is the 44632-nd pentagonal number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 2988000820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3657265920).
2988000820 is an abundant number, since it is smaller than the sum of its proper divisors (4326531020).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2988000820 is a wasteful number, since it uses less digits than its factorization.
2988000820 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1313 (or 1311 counting only the distinct ones).
The product of its (nonzero) digits is 18432, while the sum is 37.
The square root of 2988000820 is about 54662.6089754230. The cubic root of 2988000820 is about 1440.3241329246.
The spelling of 2988000820 in words is "two billion, nine hundred eighty-eight million, eight hundred twenty", and thus it is an aban number.
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.067 sec. • engine limits •