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143231324 = 22172106343
BaseRepresentation
bin10001000100110…
…00100101011100
3100222111220102212
420202120211130
5243131400244
622113535552
73356306015
oct1042304534
9328456385
10143231324
11739398a5
123bb745b8
132389c082
141504600c
15c893d9e
hex889895c

143231324 has 12 divisors (see below), whose sum is σ = 265399344. Its totient is φ = 67402944.

The previous prime is 143231279. The next prime is 143231369. The reversal of 143231324 is 423132341.

It is an interprime number because it is at equal distance from previous prime (143231279) and next prime (143231369).

It is a self number, because there is not a number n which added to its sum of digits gives 143231324.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1053104 + ... + 1053239.

It is an arithmetic number, because the mean of its divisors is an integer number (22116612).

Almost surely, 2143231324 is an apocalyptic number.

It is an amenable number.

143231324 is a deficient number, since it is larger than the sum of its proper divisors (122168020).

143231324 is a wasteful number, since it uses less digits than its factorization.

143231324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2106364 (or 2106362 counting only the distinct ones).

The product of its digits is 1728, while the sum is 23.

The square root of 143231324 is about 11967.9289770620. The cubic root of 143231324 is about 523.2139750606.

Adding to 143231324 its reverse (423132341), we get a palindrome (566363665).

The spelling of 143231324 in words is "one hundred forty-three million, two hundred thirty-one thousand, three hundred twenty-four".

Divisors: 1 2 4 17 34 68 2106343 4212686 8425372 35807831 71615662 143231324