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143103242 = 2163438967
BaseRepresentation
bin10001000011110…
…01010100001010
3100222021101202002
420201321110022
5243113300432
622111111002
73355233422
oct1041712412
9328241662
10143103242
1173861647
123bb12462
1323855999
1415011482
15c86ae62
hex887950a

143103242 has 8 divisors (see below), whose sum is σ = 215972256. Its totient is φ = 71112492.

The previous prime is 143103239. The next prime is 143103271. The reversal of 143103242 is 242301341.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 219158 + ... + 219809.

It is an arithmetic number, because the mean of its divisors is an integer number (26996532).

Almost surely, 2143103242 is an apocalyptic number.

143103242 is a deficient number, since it is larger than the sum of its proper divisors (72869014).

143103242 is a wasteful number, since it uses less digits than its factorization.

143103242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439132.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 143103242 is about 11962.5767291165. The cubic root of 143103242 is about 523.0579703640.

Adding to 143103242 its reverse (242301341), we get a palindrome (385404583).

The spelling of 143103242 in words is "one hundred forty-three million, one hundred three thousand, two hundred forty-two".

Divisors: 1 2 163 326 438967 877934 71551621 143103242