Base | Representation |
---|---|
bin | 11110010010000… |
… | …11010100100111 |
3 | 122201000010012212 |
4 | 33021003110213 |
5 | 1010012444033 |
6 | 41112434035 |
7 | 6203141402 |
oct | 1711032447 |
9 | 581003185 |
10 | 254031143 |
11 | 1204373a3 |
12 | 710a891b |
13 | 408244b2 |
14 | 25a48d39 |
15 | 1747d748 |
hex | f243527 |
254031143 has 16 divisors (see below), whose sum is σ = 270336000. Its totient is φ = 238321440.
The previous prime is 254031137. The next prime is 254031157. The reversal of 254031143 is 341130452.
254031143 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is a cyclic number.
It is not a de Polignac number, because 254031143 - 26 = 254031079 is a prime.
It is a super-2 number, since 2×2540311432 = 129063643227772898, 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 (254031133) by changing a digit.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 197978 + ... + 199256.
It is an arithmetic number, because the mean of its divisors is an integer number (16896000).
Almost surely, 2254031143 is an apocalyptic number.
254031143 is a deficient number, since it is larger than the sum of its proper divisors (16304857).
254031143 is a wasteful number, since it uses less digits than its factorization.
254031143 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1502.
The product of its (nonzero) digits is 1440, while the sum is 23.
The square root of 254031143 is about 15938.3544633692. The cubic root of 254031143 is about 633.3284352037.
Adding to 254031143 its reverse (341130452), we get a palindrome (595161595).
The spelling of 254031143 in words is "two hundred fifty-four million, thirty-one thousand, one hundred forty-three".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.070 sec. • engine limits •