Base | Representation |
---|---|
bin | 1100010101110001100… |
… | …0100001100010110111 |
3 | 202021012212200001001202 |
4 | 3011130120201202313 |
5 | 11433140323031411 |
6 | 241220515043115 |
7 | 21213432400610 |
oct | 3053430414267 |
9 | 667185601052 |
10 | 212003330231 |
11 | 81a01397930 |
12 | 351075a049b |
13 | 16cb807b744 |
14 | a392328c07 |
15 | 57ac15183b |
hex | 315c6218b7 |
212003330231 has 48 divisors (see below), whose sum is σ = 278075793408. Its totient is φ = 157003704000.
The previous prime is 212003330213. The next prime is 212003330239. The reversal of 212003330231 is 132033300212.
It is not a de Polignac number, because 212003330231 - 26 = 212003330167 is a prime.
It is a super-2 number, since 2×2120033302312 (a number of 23 digits) contains 22 as substring.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (212003330239) by changing a digit.
It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6378506 + ... + 6411656.
It is an arithmetic number, because the mean of its divisors is an integer number (5793245696).
Almost surely, 2212003330231 is an apocalyptic number.
212003330231 is a deficient number, since it is larger than the sum of its proper divisors (66072463177).
212003330231 is a wasteful number, since it uses less digits than its factorization.
212003330231 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 33372 (or 33349 counting only the distinct ones).
The product of its (nonzero) digits is 648, while the sum is 20.
Adding to 212003330231 its reverse (132033300212), we get a palindrome (344036630443).
The spelling of 212003330231 in words is "two hundred twelve billion, three million, three hundred thirty thousand, two hundred thirty-one".
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