Base | Representation |
---|---|
bin | 11110010101001… |
… | …00111111110111 |
3 | 122201202110000122 |
4 | 33022210333313 |
5 | 1010113244343 |
6 | 41125202155 |
7 | 6206425664 |
oct | 1712447767 |
9 | 581673018 |
10 | 254431223 |
11 | 12068aa42 |
12 | 7126035b |
13 | 40934627 |
14 | 25b10a6b |
15 | 1750c068 |
hex | f2a4ff7 |
254431223 has 4 divisors (see below), whose sum is σ = 267822360. Its totient is φ = 241040088.
The previous prime is 254431201. The next prime is 254431241. The reversal of 254431223 is 322134452.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is not a de Polignac number, because 254431223 - 26 = 254431159 is a prime.
It is a Duffinian number.
It is a junction number, because it is equal to n+sod(n) for n = 254431192 and 254431201.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (254431253) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (19) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6695540 + ... + 6695577.
It is an arithmetic number, because the mean of its divisors is an integer number (66955590).
Almost surely, 2254431223 is an apocalyptic number.
254431223 is a deficient number, since it is larger than the sum of its proper divisors (13391137).
254431223 is a wasteful number, since it uses less digits than its factorization.
254431223 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 13391136.
The product of its digits is 5760, while the sum is 26.
The square root of 254431223 is about 15950.9003821101. The cubic root of 254431223 is about 633.6607424088.
Adding to 254431223 its reverse (322134452), we get a palindrome (576565675).
The spelling of 254431223 in words is "two hundred fifty-four million, four hundred thirty-one thousand, two hundred twenty-three".
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