Base | Representation |
---|---|
bin | 111100100010001… |
… | …1010101110111101 |
3 | 12020120001201020120 |
4 | 1321010122232331 |
5 | 13124441414323 |
6 | 533315405153 |
7 | 101222632266 |
oct | 17104325675 |
9 | 5216051216 |
10 | 2031201213 |
11 | 952618598 |
12 | 4882b37b9 |
13 | 264a80012 |
14 | 153a9b96d |
15 | bd4c75e3 |
hex | 7911abbd |
2031201213 has 32 divisors (see below), whose sum is σ = 2927232000. Its totient is φ = 1248624000.
The previous prime is 2031201197. The next prime is 2031201217. The reversal of 2031201213 is 3121021302.
It is not a de Polignac number, because 2031201213 - 24 = 2031201197 is a prime.
It is a Curzon number.
It is a junction number, because it is equal to n+sod(n) for n = 2031201192 and 2031201201.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (2031201217) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1399138 + ... + 1400588.
It is an arithmetic number, because the mean of its divisors is an integer number (91476000).
Almost surely, 22031201213 is an apocalyptic number.
It is an amenable number.
2031201213 is a deficient number, since it is larger than the sum of its proper divisors (896030787).
2031201213 is a wasteful number, since it uses less digits than its factorization.
2031201213 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2113.
The product of its (nonzero) digits is 72, while the sum is 15.
The square root of 2031201213 is about 45068.8496968804. The cubic root of 2031201213 is about 1266.4391154104.
Adding to 2031201213 its reverse (3121021302), we get a palindrome (5152222515).
The spelling of 2031201213 in words is "two billion, thirty-one million, two hundred one thousand, two hundred thirteen".
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