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143442424 = 23115315551
BaseRepresentation
bin10001000110011…
…00000111111000
3100222220122000101
420203030013320
5243210124144
622122245144
73361145326
oct1043140770
9328818011
10143442424
1173a73464
12400567b4
1323944198
141509cd16
15c8d66d4
hex88cc1f8

143442424 has 16 divisors (see below), whose sum is σ = 269205120. Its totient is φ = 71654400.

The previous prime is 143442407. The next prime is 143442443. The reversal of 143442424 is 424244341.

It is a junction number, because it is equal to n+sod(n) for n = 143442392 and 143442401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1449 + ... + 16999.

It is an arithmetic number, because the mean of its divisors is an integer number (16825320).

Almost surely, 2143442424 is an apocalyptic number.

It is an amenable number.

143442424 is a deficient number, since it is larger than the sum of its proper divisors (125762696).

143442424 is a wasteful number, since it uses less digits than its factorization.

143442424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16710 (or 16706 counting only the distinct ones).

The product of its digits is 12288, while the sum is 28.

The square root of 143442424 is about 11976.7451337999. The cubic root of 143442424 is about 523.4708933783.

Adding to 143442424 its reverse (424244341), we get a palindrome (567686765).

The spelling of 143442424 in words is "one hundred forty-three million, four hundred forty-two thousand, four hundred twenty-four".

Divisors: 1 2 4 8 1153 2306 4612 9224 15551 31102 62204 124408 17930303 35860606 71721212 143442424