| Base | Representation |
|---|---|
| bin | 1100100100111001110… |
| … | …1001100110001011100 |
| 3 | 202122200220202001122100 |
| 4 | 3021032131030301130 |
| 5 | 12020000022022030 |
| 6 | 243131515045100 |
| 7 | 21416166104244 |
| oct | 3111635146134 |
| 9 | 678626661570 |
| 10 | 216064642140 |
| 11 | 836a5948656 |
| 12 | 35a5b740790 |
| 13 | 174b45b9299 |
| 14 | a65987cb24 |
| 15 | 5948988360 |
| hex | 324e74cc5c |
216064642140 has 36 divisors (see below), whose sum is σ = 655396081704. Its totient is φ = 57617237856.
The previous prime is 216064642121. The next prime is 216064642141. The reversal of 216064642140 is 41246460612.
216064642140 is a `hidden beast` number, since 2 + 1 + 6 + 0 + 6 + 4 + 642 + 1 + 4 + 0 = 666.
216064642140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a tau number, because it is divible by the number of its divisors (36).
It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.
It is a Harshad number since it is a multiple of its sum of digits (36).
It is a junction number, because it is equal to n+sod(n) for n = 216064642095 and 216064642104.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (216064642141) by changing a digit.
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 11 ways as a sum of consecutive naturals, for example, 600179382 + ... + 600179741.
It is an arithmetic number, because the mean of its divisors is an integer number (18205446714).
Almost surely, 2216064642140 is an apocalyptic number.
216064642140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
216064642140 is an abundant number, since it is smaller than the sum of its proper divisors (439331439564).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
216064642140 is a wasteful number, since it uses less digits than its factorization.
216064642140 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1200359138 (or 1200359133 counting only the distinct ones).
The product of its (nonzero) digits is 55296, while the sum is 36.
The spelling of 216064642140 in words is "two hundred sixteen billion, sixty-four million, six hundred forty-two thousand, one hundred forty".
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