| Base | Representation |
|---|---|
| bin | 111111101001110… |
| … | …0111001100001010 |
| 3 | 12111211222022020000 |
| 4 | 1333103213030022 |
| 5 | 13333234111230 |
| 6 | 551534343430 |
| 7 | 103633256124 |
| oct | 17723471412 |
| 9 | 5454868200 |
| 10 | 2135847690 |
| 11 | 9a66a2a89 |
| 12 | 4b735ab76 |
| 13 | 28065c702 |
| 14 | 16393c214 |
| 15 | c7798b60 |
| hex | 7f4e730a |
2135847690 has 80 divisors (see below), whose sum is σ = 5775533280. Its totient is φ = 566339040.
The previous prime is 2135847677. The next prime is 2135847719. The reversal of 2135847690 is 967485312.
2135847690 is a `hidden beast` number, since 2 + 1 + 3 + 584 + 7 + 69 + 0 = 666.
2135847690 is digitally balanced in base 10, because in such base it contains all the possibile digits an equal number of times.
It is a super-2 number, since 2×21358476902 = 9123690709756672200, which contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (45).
2135847690 is strictly pandigital in base 10.
It is a Curzon number.
It is an unprimeable number.
It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 137625 + ... + 152355.
It is an arithmetic number, because the mean of its divisors is an integer number (72194166).
It is a 2-persistent number, because it is pandigital, and so is 2⋅2135847690 = 4271695380, but 3⋅2135847690 = 6407543070 is not.
Almost surely, 22135847690 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 2135847690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2887766640).
2135847690 is an abundant number, since it is smaller than the sum of its proper divisors (3639685590).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2135847690 is a wasteful number, since it uses less digits than its factorization.
2135847690 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 14929 (or 14920 counting only the distinct ones).
The product of its (nonzero) digits is 362880, while the sum is 45.
The square root of 2135847690 is about 46215.2322292120. The cubic root of 2135847690 is about 1287.8247277187.
The spelling of 2135847690 in words is "two billion, one hundred thirty-five million, eight hundred forty-seven thousand, six hundred ninety".
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