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4402143 = 32489127
BaseRepresentation
bin10000110010101111011111
322021122121100
4100302233133
52111332033
6234204143
752263144
oct20625737
98248540
104402143
112537439
121583653
13bb1925
148283cb
155be513
hex432bdf

4402143 has 6 divisors (see below), whose sum is σ = 6358664. Its totient is φ = 2934756.

The previous prime is 4402081. The next prime is 4402157. The reversal of 4402143 is 3412044.

It is not a de Polignac number, because 4402143 - 212 = 4398047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4402193) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 244555 + ... + 244572.

Almost surely, 24402143 is an apocalyptic number.

4402143 is a deficient number, since it is larger than the sum of its proper divisors (1956521).

4402143 is a wasteful number, since it uses less digits than its factorization.

4402143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489133 (or 489130 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 4402143 is about 2098.1284517398. The cubic root of 4402143 is about 163.8908529157.

Adding to 4402143 its reverse (3412044), we get a palindrome (7814187).

Subtracting from 4402143 its reverse (3412044), we obtain a palindrome (990099).

The spelling of 4402143 in words is "four million, four hundred two thousand, one hundred forty-three".

Divisors: 1 3 9 489127 1467381 4402143