Search a number
-
+
143023422 = 231131931093
BaseRepresentation
bin10001000011001…
…01110100111110
3100222010100020210
420201211310332
5243103222142
622105253250
73354451623
oct1041456476
9328110223
10143023422
1173807683
123ba94226
1323828559
1414dd034a
15c85249c
hex8865d3e

143023422 has 32 divisors (see below), whose sum is σ = 290338848. Its totient is φ = 46964736.

The previous prime is 143023421. The next prime is 143023451. The reversal of 143023422 is 224320341.

143023422 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143023421) 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, 130308 + ... + 131400.

It is an arithmetic number, because the mean of its divisors is an integer number (9073089).

Almost surely, 2143023422 is an apocalyptic number.

143023422 is an abundant number, since it is smaller than the sum of its proper divisors (147315426).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

143023422 is a wasteful number, since it uses less digits than its factorization.

143023422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1404.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 143023422 is about 11959.2400260217. The cubic root of 143023422 is about 522.9607020060.

Adding to 143023422 its reverse (224320341), we get a palindrome (367343763).

The spelling of 143023422 in words is "one hundred forty-three million, twenty-three thousand, four hundred twenty-two".

Divisors: 1 2 3 6 113 193 226 339 386 579 678 1093 1158 2186 3279 6558 21809 43618 65427 123509 130854 210949 247018 370527 421898 632847 741054 1265694 23837237 47674474 71511711 143023422