Base | Representation |
---|---|
bin | 100100101010000… |
… | …1100010011000111 |
3 | 10011201111222222112 |
4 | 1021110030103013 |
5 | 10004341430043 |
6 | 322015451235 |
7 | 42324040235 |
oct | 11124142307 |
9 | 3151458875 |
10 | 1230030023 |
11 | 581357842 |
12 | 2a3b26b1b |
13 | 167aaa021 |
14 | b9509955 |
15 | 72ebd518 |
hex | 4950c4c7 |
1230030023 has 4 divisors (see below), whose sum is σ = 1232556240. Its totient is φ = 1227503808.
The previous prime is 1230030001. The next prime is 1230030073. The reversal of 1230030023 is 3200300321.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3200300321 = 19 ⋅168436859.
It is a cyclic number.
It is not a de Polignac number, because 1230030023 - 26 = 1230029959 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 (1230030073) 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 3 ways as a sum of consecutive naturals, for example, 1262378 + ... + 1263351.
It is an arithmetic number, because the mean of its divisors is an integer number (308139060).
Almost surely, 21230030023 is an apocalyptic number.
1230030023 is a deficient number, since it is larger than the sum of its proper divisors (2526217).
1230030023 is an equidigital number, since it uses as much as digits as its factorization.
1230030023 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2526216.
The product of its (nonzero) digits is 108, while the sum is 14.
The square root of 1230030023 is about 35071.7838582528. The cubic root of 1230030023 is about 1071.4499872028.
Adding to 1230030023 its reverse (3200300321), we get a palindrome (4430330344).
The spelling of 1230030023 in words is "one billion, two hundred thirty million, thirty thousand, twenty-three".
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