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143424234031 = 1311032633387
BaseRepresentation
bin1000010110010011000…
…0000010001000101111
3111201012110222222202211
42011210300002020233
54322213100442111
6145515503031251
713235120605621
oct2054460021057
9451173888684
10143424234031
115590a271921
122396859b527
13106a9121490
146d28306c11
153ae6664521
hex2164c0222f

143424234031 has 4 divisors (see below), whose sum is σ = 154456867432. Its totient is φ = 132391600632.

The previous prime is 143424234001. The next prime is 143424234077. The reversal of 143424234031 is 130432424341.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 130432424341 = 196864864439.

It is a cyclic number.

It is not a de Polignac number, because 143424234031 - 223 = 143415845423 is a prime.

It is a super-2 number, since 2×1434242340312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 143424233984 and 143424234002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143424234001) 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, 5516316681 + ... + 5516316706.

It is an arithmetic number, because the mean of its divisors is an integer number (38614216858).

Almost surely, 2143424234031 is an apocalyptic number.

143424234031 is a deficient number, since it is larger than the sum of its proper divisors (11032633401).

143424234031 is a wasteful number, since it uses less digits than its factorization.

143424234031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11032633400.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 143424234031 its reverse (130432424341), we get a palindrome (273856658372).

The spelling of 143424234031 in words is "one hundred forty-three billion, four hundred twenty-four million, two hundred thirty-four thousand, thirty-one".

Divisors: 1 13 11032633387 143424234031