Base | Representation |
---|---|
bin | 10001111001101001011… |
… | …101101000001101011011 |
3 | 11100121011212122202220222 |
4 | 101321221131220031123 |
5 | 130123301241134321 |
6 | 2341040335310255 |
7 | 154605524441330 |
oct | 21715135501533 |
9 | 4317155582828 |
10 | 1230130021211 |
11 | 434771366a73 |
12 | 17a4a807b38b |
13 | 8c0018a5120 |
14 | 43777d3a987 |
15 | 21ee9e493ab |
hex | 11e6976835b |
1230130021211 has 32 divisors (see below), whose sum is σ = 1603457573760. Its totient is φ = 915813236736.
The previous prime is 1230130021201. The next prime is 1230130021271. The reversal of 1230130021211 is 1121200310321.
It is a cyclic number.
It is not a de Polignac number, because 1230130021211 - 214 = 1230130004827 is a prime.
It is a Harshad number since it is a multiple of its sum of digits (17).
It is a self number, because there is not a number n which added to its sum of digits gives 1230130021211.
It is not an unprimeable number, because it can be changed into a prime (1230130021201) 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, 6366635 + ... + 6557003.
It is an arithmetic number, because the mean of its divisors is an integer number (50108049180).
Almost surely, 21230130021211 is an apocalyptic number.
1230130021211 is a deficient number, since it is larger than the sum of its proper divisors (373327552549).
1230130021211 is a wasteful number, since it uses less digits than its factorization.
1230130021211 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 194583.
The product of its (nonzero) digits is 72, while the sum is 17.
Adding to 1230130021211 its reverse (1121200310321), we get a palindrome (2351330331532).
The spelling of 1230130021211 in words is "one trillion, two hundred thirty billion, one hundred thirty million, twenty-one thousand, two hundred eleven".
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