Base | Representation |
---|---|
bin | 1100001111000110101… |
… | …1000100110100111111 |
3 | 202002121002220102112101 |
4 | 3003301223010310333 |
5 | 11421004013444411 |
6 | 240323122445531 |
7 | 21121163166160 |
oct | 3036153046477 |
9 | 662532812471 |
10 | 210213031231 |
11 | 81172859785 |
12 | 348a7b038a7 |
13 | 16a911a7118 |
14 | a262659767 |
15 | 5704db28c1 |
hex | 30f1ac4d3f |
210213031231 has 8 divisors (see below), whose sum is σ = 252887857280. Its totient is φ = 170699303448.
The previous prime is 210213031211. The next prime is 210213031267. The reversal of 210213031231 is 132130312012.
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 210213031231 - 27 = 210213031103 is a prime.
It is a super-2 number, since 2×2102130312312 (a number of 23 digits) contains 22 as substring.
It is a Harshad number since it is a multiple of its sum of digits (19).
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 210213031199 and 210213031208.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (210213031211) 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, 790274421 + ... + 790274686.
It is an arithmetic number, because the mean of its divisors is an integer number (31610982160).
Almost surely, 2210213031231 is an apocalyptic number.
210213031231 is a deficient number, since it is larger than the sum of its proper divisors (42674826049).
210213031231 is a wasteful number, since it uses less digits than its factorization.
210213031231 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 1580549133.
The product of its (nonzero) digits is 216, while the sum is 19.
Adding to 210213031231 its reverse (132130312012), we get a palindrome (342343343243).
The spelling of 210213031231 in words is "two hundred ten billion, two hundred thirteen million, thirty-one thousand, two hundred thirty-one".
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