| Base | Representation |
|---|---|
| bin | 111110101001010… |
| … | …1010001100011100 |
| 3 | 12102111100212111000 |
| 4 | 1331102222030130 |
| 5 | 13301110342140 |
| 6 | 544330030300 |
| 7 | 103043034321 |
| oct | 17522521434 |
| 9 | 5374325430 |
| 10 | 2102043420 |
| 11 | 989604374 |
| 12 | 4a7b78390 |
| 13 | 276654c99 |
| 14 | 15d25cb48 |
| 15 | c481ca30 |
| hex | 7d4aa31c |
2102043420 has 96 divisors (see below), whose sum is σ = 6577784640. Its totient is φ = 557280000.
The previous prime is 2102043413. The next prime is 2102043431. The reversal of 2102043420 is 243402012.
2102043420 is a `hidden beast` number, since 210 + 2 + 0 + 434 + 20 = 666.
2102043420 is digitally balanced in base 4, 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 (18).
It is a junction number, because it is equal to n+sod(n) for n = 2102043393 and 2102043402.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 82170 + ... + 104670.
It is an arithmetic number, because the mean of its divisors is an integer number (68518590).
Almost surely, 22102043420 is an apocalyptic number.
2102043420 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 2102043420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3288892320).
2102043420 is an abundant number, since it is smaller than the sum of its proper divisors (4475741220).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2102043420 is a wasteful number, since it uses less digits than its factorization.
2102043420 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 22692 (or 22684 counting only the distinct ones).
The product of its (nonzero) digits is 384, while the sum is 18.
The square root of 2102043420 is about 45848.0470685503. The cubic root of 2102043420 is about 1280.9943892388.
Adding to 2102043420 its reverse (243402012), we get a palindrome (2345445432).
The spelling of 2102043420 in words is "two billion, one hundred two million, forty-three thousand, four hundred twenty".
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