Base | Representation |
---|---|
bin | 1100011001100000001… |
… | …0100100011110011111 |
3 | 202100210121222220021220 |
4 | 3012120002210132133 |
5 | 11442213034124111 |
6 | 241504111224423 |
7 | 21250304615646 |
oct | 3063002443637 |
9 | 670717886256 |
10 | 213004208031 |
11 | 8237536016a |
12 | 35346818113 |
13 | 17117535324 |
14 | a44922435d |
15 | 5819e57e06 |
hex | 31980a479f |
213004208031 has 8 divisors (see below), whose sum is σ = 286659869184. Its totient is φ = 140675676120.
The previous prime is 213004207993. The next prime is 213004208033. The reversal of 213004208031 is 130802400312.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 213004208031 - 211 = 213004205983 is a prime.
It is a super-2 number, since 2×2130042080312 (a number of 23 digits) contains 22 as substring.
It is a junction number, because it is equal to n+sod(n) for n = 213004207992 and 213004208010.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (213004208033) by changing a digit.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 331781935 + ... + 331782576.
It is an arithmetic number, because the mean of its divisors is an integer number (35832483648).
Almost surely, 2213004208031 is an apocalyptic number.
213004208031 is a deficient number, since it is larger than the sum of its proper divisors (73655661153).
213004208031 is a wasteful number, since it uses less digits than its factorization.
213004208031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 663564621.
The product of its (nonzero) digits is 1152, while the sum is 24.
Adding to 213004208031 its reverse (130802400312), we get a palindrome (343806608343).
The spelling of 213004208031 in words is "two hundred thirteen billion, four million, two hundred eight thousand, thirty-one".
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