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29238143 = 112658013
BaseRepresentation
bin110111110001…
…0001101111111
32001000110012012
41233202031333
524441110033
62522401435
7503343254
oct157421577
961013165
1029238143
1115560060
12996027b
13609929c
143c5142b
152878248
hex1be237f

29238143 has 4 divisors (see below), whose sum is σ = 31896168. Its totient is φ = 26580120.

The previous prime is 29238133. The next prime is 29238163. The reversal of 29238143 is 34183292.

It is a happy number.

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 29238143 - 24 = 29238127 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29238133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1328996 + ... + 1329017.

It is an arithmetic number, because the mean of its divisors is an integer number (7974042).

Almost surely, 229238143 is an apocalyptic number.

29238143 is a deficient number, since it is larger than the sum of its proper divisors (2658025).

29238143 is a wasteful number, since it uses less digits than its factorization.

29238143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2658024.

The product of its digits is 10368, while the sum is 32.

The square root of 29238143 is about 5407.2306220467. The cubic root of 29238143 is about 308.0703688937.

The spelling of 29238143 in words is "twenty-nine million, two hundred thirty-eight thousand, one hundred forty-three".

Divisors: 1 11 2658013 29238143