| Base | Representation |
|---|---|
| bin | 1100010110001001000… |
| … | …1010011100111111100 |
| 3 | 202021110202112010202220 |
| 4 | 3011202101103213330 |
| 5 | 11433341114222000 |
| 6 | 241234404045340 |
| 7 | 21216042054522 |
| oct | 3054221234774 |
| 9 | 667422463686 |
| 10 | 212102101500 |
| 11 | 81a5211a183 |
| 12 | 35134693850 |
| 13 | 17002681b93 |
| 14 | a3a14ba312 |
| 15 | 57b5b621a0 |
| hex | 31624539fc |
212102101500 has 384 divisors, whose sum is σ = 681927966720. Its totient is φ = 50988960000.
The previous prime is 212102101499. The next prime is 212102101577. The reversal of 212102101500 is 5101201212.
212102101500 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a Harshad number since it is a multiple of its sum of digits (15).
It is a self number, because there is not a number n which added to its sum of digits gives 212102101500.
It is a congruent number.
It is an unprimeable number.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 146175775 + ... + 146177225.
It is an arithmetic number, because the mean of its divisors is an integer number (1775854080).
Almost surely, 2212102101500 is an apocalyptic number.
212102101500 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 212102101500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (340963983360).
212102101500 is an abundant number, since it is smaller than the sum of its proper divisors (469825865220).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
212102101500 is a wasteful number, since it uses less digits than its factorization.
212102101500 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1738 (or 1726 counting only the distinct ones).
The product of its (nonzero) digits is 40, while the sum is 15.
Adding to 212102101500 its reverse (5101201212), we get a palindrome (217203302712).
The spelling of 212102101500 in words is "two hundred twelve billion, one hundred two million, one hundred one thousand, five hundred".
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