Base | Representation |
---|---|
bin | 10010111010100101… |
… | …010001011101100101 |
3 | 1221102110020011200121 |
4 | 102322211101131211 |
5 | 313043402432323 |
6 | 13155210041541 |
7 | 1316206604350 |
oct | 227245213545 |
9 | 57373204617 |
10 | 20310202213 |
11 | 8682641594 |
12 | 3b29a192b1 |
13 | 1bb8a38342 |
14 | da9593297 |
15 | 7dd0e2a5d |
hex | 4ba951765 |
20310202213 has 8 divisors (see below), whose sum is σ = 23212732928. Its totient is φ = 17407939824.
The previous prime is 20310202207. The next prime is 20310202273. The reversal of 20310202213 is 31220201302.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 20310202213 - 233 = 11720267621 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20310202273) 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, 136195 + ... + 243247.
It is an arithmetic number, because the mean of its divisors is an integer number (2901591616).
Almost surely, 220310202213 is an apocalyptic number.
It is an amenable number.
20310202213 is a deficient number, since it is larger than the sum of its proper divisors (2902530715).
20310202213 is a wasteful number, since it uses less digits than its factorization.
20310202213 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 134163.
The product of its (nonzero) digits is 144, while the sum is 16.
Adding to 20310202213 its reverse (31220201302), we get a palindrome (51530403515).
The spelling of 20310202213 in words is "twenty billion, three hundred ten million, two hundred two thousand, two hundred thirteen".
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