Base | Representation |
---|---|
bin | 1001001100001100011100… |
… | …11101001001011001100111 |
3 | 2122120002002100210111100102 |
4 | 10212012032131021121213 |
5 | 10122111003022224111 |
6 | 110552235352134315 |
7 | 4154065605124013 |
oct | 446061635113147 |
9 | 78502070714312 |
10 | 20210211133031 |
11 | 649211433a657 |
12 | 2324a5a99739b |
13 | b37a78c74b5a |
14 | 4dc272541543 |
15 | 250aa99c113b |
hex | 12618e749667 |
20210211133031 has 8 divisors (see below), whose sum is σ = 20238170598000. Its totient is φ = 20182255349440.
The previous prime is 20210211133019. The next prime is 20210211133061. The reversal of 20210211133031 is 13033111201202.
It is a happy number.
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 20210211133031 - 214 = 20210211116647 is a prime.
It is a super-2 number, since 2×202102111330312 (a number of 27 digits) contains 22 as substring.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 20210211132994 and 20210211133012.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (20210211133061) 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, 10159100 + ... + 11984478.
It is an arithmetic number, because the mean of its divisors is an integer number (2529771324750).
Almost surely, 220210211133031 is an apocalyptic number.
20210211133031 is a deficient number, since it is larger than the sum of its proper divisors (27959464969).
20210211133031 is a wasteful number, since it uses less digits than its factorization.
20210211133031 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1840689.
The product of its (nonzero) digits is 216, while the sum is 20.
Adding to 20210211133031 its reverse (13033111201202), we get a palindrome (33243322334233).
The spelling of 20210211133031 in words is "twenty trillion, two hundred ten billion, two hundred eleven million, one hundred thirty-three thousand, thirty-one".
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