Base | Representation |
---|---|
bin | 1100011011000011010… |
… | …0110011110000110000 |
3 | 202101212121102220012111 |
4 | 3012300310303300300 |
5 | 11444041011443044 |
6 | 242013243535104 |
7 | 21263514221614 |
oct | 3066064636060 |
9 | 671777386174 |
10 | 213420031024 |
11 | 82569053132 |
12 | 35441b2a494 |
13 | 17182726a35 |
14 | a488547344 |
15 | 58416e4b34 |
hex | 31b0d33c30 |
213420031024 has 60 divisors (see below), whose sum is σ = 443286632800. Its totient is φ = 99511317504.
The previous prime is 213420031021. The next prime is 213420031079. The reversal of 213420031024 is 420130024312.
It is a junction number, because it is equal to n+sod(n) for n = 213420030986 and 213420031004.
It is not an unprimeable number, because it can be changed into a prime (213420031021) 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 11 ways as a sum of consecutive naturals, for example, 292297 + ... + 715735.
Almost surely, 2213420031024 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 213420031024, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (221643316400).
213420031024 is an abundant number, since it is smaller than the sum of its proper divisors (229866601776).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
213420031024 is a wasteful number, since it uses less digits than its factorization.
213420031024 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 423590 (or 423567 counting only the distinct ones).
The product of its (nonzero) digits is 1152, while the sum is 22.
Adding to 213420031024 its reverse (420130024312), we get a palindrome (633550055336).
The spelling of 213420031024 in words is "two hundred thirteen billion, four hundred twenty million, thirty-one thousand, twenty-four".
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