| Base | Representation |
|---|---|
| bin | 1100010101010011… |
| … | …00100011000000000 |
| 3 | 122002102210202010200 |
| 4 | 12022221210120000 |
| 5 | 102030001320000 |
| 6 | 3013001325200 |
| 7 | 323035406565 |
| oct | 61251443000 |
| 9 | 18072722120 |
| 10 | 6621120000 |
| 11 | 28984a4500 |
| 12 | 1349496800 |
| 13 | 81697a7b1 |
| 14 | 46b4d286c |
| 15 | 28b428500 |
| hex | 18aa64600 |
6621120000 has 900 divisors, whose sum is σ = 27628140540. Its totient is φ = 1520640000.
The previous prime is 6621119969. The next prime is 6621120043. The reversal of 6621120000 is 211266.
It is a happy number.
6621120000 is a `hidden beast` number, since 662 + 1 + 1 + 2 + 0 + 0 + 0 + 0 = 666.
It is a tau number, because it is divible by the number of its divisors (900).
It is a Harshad number since it is a multiple of its sum of digits (18).
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (11) of ones.
It is a polite number, since it can be written in 89 ways as a sum of consecutive naturals, for example, 348479991 + ... + 348480009.
Almost surely, 26621120000 is an apocalyptic number.
6621120000 is a gapful number since it is divisible by the number (60) 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 6621120000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13814070270).
6621120000 is an abundant number, since it is smaller than the sum of its proper divisors (21007020540).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
6621120000 is a wasteful number, since it uses less digits than its factorization.
6621120000 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 85 (or 40 counting only the distinct ones).
The product of its (nonzero) digits is 144, while the sum is 18.
The square root of 6621120000 is about 81370.2648391905. The cubic root of 6621120000 is about 1877.7761542208.
Adding to 6621120000 its reverse (211266), we get a palindrome (6621331266).
It can be divided in two parts, 6621 and 120000, that added together give a palindrome (126621).
The spelling of 6621120000 in words is "six billion, six hundred twenty-one million, one hundred twenty thousand".
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