Base | Representation |
---|---|
bin | 100100101010100… |
… | …1110111100101111 |
3 | 10011202000212110122 |
4 | 1021111032330233 |
5 | 10004424144043 |
6 | 322025355155 |
7 | 42326255165 |
oct | 11125167457 |
9 | 3152025418 |
10 | 1230303023 |
11 | 581523964 |
12 | 2a4038abb |
13 | 167b74371 |
14 | b957b235 |
15 | 73024368 |
hex | 4954ef2f |
1230303023 has 4 divisors (see below), whose sum is σ = 1230855240. Its totient is φ = 1229750808.
The previous prime is 1230303001. The next prime is 1230303037. The reversal of 1230303023 is 3203030321.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-1230303023 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 1230302992 and 1230303010.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1230303043) by changing a digit.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 272753 + ... + 277226.
It is an arithmetic number, because the mean of its divisors is an integer number (307713810).
Almost surely, 21230303023 is an apocalyptic number.
1230303023 is a deficient number, since it is larger than the sum of its proper divisors (552217).
1230303023 is an equidigital number, since it uses as much as digits as its factorization.
1230303023 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 552216.
The product of its (nonzero) digits is 324, while the sum is 17.
The square root of 1230303023 is about 35075.6756599214. The cubic root of 1230303023 is about 1071.5292492814.
Adding to 1230303023 its reverse (3203030321), we get a palindrome (4433333344).
The spelling of 1230303023 in words is "one billion, two hundred thirty million, three hundred three thousand, twenty-three".
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