Base | Representation |
---|---|
bin | 100100101010110… |
… | …1001100000001101 |
3 | 10011202020101200000 |
4 | 1021111221200031 |
5 | 10004441134124 |
6 | 322031554513 |
7 | 42330220245 |
oct | 11125514015 |
9 | 3152211600 |
10 | 1230411789 |
11 | 581598652 |
12 | 2a408ba39 |
13 | 167bb1a19 |
14 | b95a8b25 |
15 | 730466c9 |
hex | 4956980d |
1230411789 has 24 divisors (see below), whose sum is σ = 1850520672. Its totient is φ = 816966000.
The previous prime is 1230411781. The next prime is 1230411799. The reversal of 1230411789 is 9871140321.
It is a happy number.
1230411789 is a `hidden beast` number, since 1 + 230 + 411 + 7 + 8 + 9 = 666.
It is not a de Polignac number, because 1230411789 - 23 = 1230411781 is a prime.
It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1230411781) 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 23 ways as a sum of consecutive naturals, for example, 50907 + ... + 71079.
It is an arithmetic number, because the mean of its divisors is an integer number (77105028).
Almost surely, 21230411789 is an apocalyptic number.
It is an amenable number.
1230411789 is a deficient number, since it is larger than the sum of its proper divisors (620108883).
1230411789 is an equidigital number, since it uses as much as digits as its factorization.
1230411789 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 20439 (or 20427 counting only the distinct ones).
The product of its (nonzero) digits is 12096, while the sum is 36.
The square root of 1230411789 is about 35077.2260733371. The cubic root of 1230411789 is about 1071.5608248401.
The spelling of 1230411789 in words is "one billion, two hundred thirty million, four hundred eleven thousand, seven hundred eighty-nine".
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