Base | Representation |
---|---|
bin | 111111000010101… |
… | …1011011110001000 |
3 | 12110102102001001021 |
4 | 1332011123132020 |
5 | 13313012234311 |
6 | 545523202224 |
7 | 103264125220 |
oct | 17605333610 |
9 | 5412361037 |
10 | 2115352456 |
11 | 996074678 |
12 | 4b0516374 |
13 | 279334a59 |
14 | 160d25080 |
15 | c5a9b171 |
hex | 7e15b788 |
2115352456 has 64 divisors (see below), whose sum is σ = 4805729280. Its totient is φ = 853597440.
The previous prime is 2115352451. The next prime is 2115352501. The reversal of 2115352456 is 6542535112.
It is not an unprimeable number, because it can be changed into a prime (2115352451) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47766 + ... + 80698.
It is an arithmetic number, because the mean of its divisors is an integer number (75089520).
Almost surely, 22115352456 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 2115352456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2402864640).
2115352456 is an abundant number, since it is smaller than the sum of its proper divisors (2690376824).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2115352456 is a wasteful number, since it uses less digits than its factorization.
2115352456 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 33014 (or 33010 counting only the distinct ones).
The product of its digits is 36000, while the sum is 34.
The square root of 2115352456 is about 45992.9609396916. The cubic root of 2115352456 is about 1283.6922315636.
Adding to 2115352456 its reverse (6542535112), we get a palindrome (8657887568).
The spelling of 2115352456 in words is "two billion, one hundred fifteen million, three hundred fifty-two thousand, four hundred fifty-six".
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