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143142044 = 22238315017
BaseRepresentation
bin10001000100000…
…10110010011100
3100222100100222012
420202002302130
5243121021134
622112010352
73355454513
oct1042026234
9328310865
10143142044
1173888811
123bb309b8
132386a546
141502167a
15c8776ce
hex8882c9c

143142044 has 12 divisors (see below), whose sum is σ = 250620384. Its totient is φ = 71536224.

The previous prime is 143142019. The next prime is 143142047. The reversal of 143142044 is 440241341.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143142047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2024 + ... + 17040.

It is an arithmetic number, because the mean of its divisors is an integer number (20885032).

Almost surely, 2143142044 is an apocalyptic number.

It is an amenable number.

143142044 is a deficient number, since it is larger than the sum of its proper divisors (107478340).

143142044 is a wasteful number, since it uses less digits than its factorization.

143142044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17404 (or 17402 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 143142044 is about 11964.1984269737. The cubic root of 143142044 is about 523.1052412737.

Adding to 143142044 its reverse (440241341), we get a palindrome (583383385).

The spelling of 143142044 in words is "one hundred forty-three million, one hundred forty-two thousand, forty-four".

Divisors: 1 2 4 2383 4766 9532 15017 30034 60068 35785511 71571022 143142044