Base | Representation |
---|---|
bin | 100100101010011… |
… | …1000100010001101 |
3 | 10011201212012112021 |
4 | 1021110320202031 |
5 | 10004413224323 |
6 | 322023410141 |
7 | 42325423420 |
oct | 11124704215 |
9 | 3151765467 |
10 | 1230211213 |
11 | 581470990 |
12 | 2a3bb3951 |
13 | 167b4163a |
14 | b95559b7 |
15 | 7300705d |
hex | 4953888d |
1230211213 has 8 divisors (see below), whose sum is σ = 1533769920. Its totient is φ = 958606080.
The previous prime is 1230211201. The next prime is 1230211237. The reversal of 1230211213 is 3121120321.
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 1230211213 - 29 = 1230210701 is a prime.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1230211243) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7988308 + ... + 7988461.
It is an arithmetic number, because the mean of its divisors is an integer number (191721240).
Almost surely, 21230211213 is an apocalyptic number.
It is an amenable number.
1230211213 is a deficient number, since it is larger than the sum of its proper divisors (303558707).
1230211213 is a wasteful number, since it uses less digits than its factorization.
1230211213 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 15976787.
The product of its (nonzero) digits is 72, while the sum is 16.
The square root of 1230211213 is about 35074.3668937873. The cubic root of 1230211213 is about 1071.5025947240.
Adding to 1230211213 its reverse (3121120321), we get a palindrome (4351331534).
The spelling of 1230211213 in words is "one billion, two hundred thirty million, two hundred eleven thousand, two hundred thirteen".
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