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143211134 = 21131209987
BaseRepresentation
bin10001000100100…
…11101001111110
3100222110212202002
420202103221332
5243130224014
622113302302
73356163113
oct1042235176
9328425662
10143211134
1173925710
123bb64992
1323892b21
141503c90a
15c88cdde
hex8893a7e

143211134 has 16 divisors (see below), whose sum is σ = 241906176. Its totient is φ = 62995800.

The previous prime is 143211119. The next prime is 143211137. The reversal of 143211134 is 431112341.

143211134 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 (143211137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104312 + ... + 105675.

It is an arithmetic number, because the mean of its divisors is an integer number (15119136).

Almost surely, 2143211134 is an apocalyptic number.

143211134 is a deficient number, since it is larger than the sum of its proper divisors (98695042).

143211134 is a wasteful number, since it uses less digits than its factorization.

143211134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210031.

The product of its digits is 288, while the sum is 20.

The square root of 143211134 is about 11967.0854429974. The cubic root of 143211134 is about 523.1893896876.

Adding to 143211134 its reverse (431112341), we get a palindrome (574323475).

The spelling of 143211134 in words is "one hundred forty-three million, two hundred eleven thousand, one hundred thirty-four".

Divisors: 1 2 11 22 31 62 341 682 209987 419974 2309857 4619714 6509597 13019194 71605567 143211134