Base | Representation |
---|---|
bin | 10010101111010111… |
… | …011010100101110101 |
3 | 1220221100010112111220 |
4 | 102233113122211311 |
5 | 312202214121323 |
6 | 13124404420553 |
7 | 1311433230651 |
oct | 225727324565 |
9 | 56840115456 |
10 | 20122020213 |
11 | 85963a0679 |
12 | 3a969a7759 |
13 | 1b88a5b249 |
14 | d8c5a9a61 |
15 | 7cb8200e3 |
hex | 4af5da975 |
20122020213 has 8 divisors (see below), whose sum is σ = 26990015808. Its totient is φ = 13334352384.
The previous prime is 20122020211. The next prime is 20122020263. The reversal of 20122020213 is 31202022102.
It is a happy number.
It is a sphenic number, since it is the product of 3 distinct primes.
It is not a de Polignac number, because 20122020213 - 21 = 20122020211 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 20122020192 and 20122020201.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20122020211) 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, 20081356 + ... + 20082357.
It is an arithmetic number, because the mean of its divisors is an integer number (3373751976).
Almost surely, 220122020213 is an apocalyptic number.
It is an amenable number.
20122020213 is a deficient number, since it is larger than the sum of its proper divisors (6867995595).
20122020213 is a wasteful number, since it uses less digits than its factorization.
20122020213 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 40163883.
The product of its (nonzero) digits is 96, while the sum is 15.
Adding to 20122020213 its reverse (31202022102), we get a palindrome (51324042315).
The spelling of 20122020213 in words is "twenty billion, one hundred twenty-two million, twenty thousand, two hundred thirteen".
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