Base | Representation |
---|---|
bin | 100100101010110… |
… | …1100100010100111 |
3 | 10011202021000201211 |
4 | 1021111230202213 |
5 | 10004442033411 |
6 | 322032132251 |
7 | 42330301441 |
oct | 11125544247 |
9 | 3152230654 |
10 | 1230424231 |
11 | 5815a6a33 |
12 | 2a4097087 |
13 | 167bb759a |
14 | b95ad491 |
15 | 7304a221 |
hex | 4956c8a7 |
1230424231 has 4 divisors (see below), whose sum is σ = 1259038792. Its totient is φ = 1201809672.
The previous prime is 1230424219. The next prime is 1230424243. The reversal of 1230424231 is 1324240321.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1324240321 = 19 ⋅69696859.
It is an interprime number because it is at equal distance from previous prime (1230424219) and next prime (1230424243).
It is a cyclic number.
It is not a de Polignac number, because 1230424231 - 223 = 1222035623 is a prime.
It is a super-2 number, since 2×12304242312 = 3027887576463882722, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1230464231) 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, 14307216 + ... + 14307301.
It is an arithmetic number, because the mean of its divisors is an integer number (314759698).
Almost surely, 21230424231 is an apocalyptic number.
1230424231 is a deficient number, since it is larger than the sum of its proper divisors (28614561).
1230424231 is an equidigital number, since it uses as much as digits as its factorization.
1230424231 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 28614560.
The product of its (nonzero) digits is 1152, while the sum is 22.
The square root of 1230424231 is about 35077.4034244270. The cubic root of 1230424231 is about 1071.5644367244.
Adding to 1230424231 its reverse (1324240321), we get a palindrome (2554664552).
The spelling of 1230424231 in words is "one billion, two hundred thirty million, four hundred twenty-four thousand, two hundred thirty-one".
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