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143181710242 = 2191374821231
BaseRepresentation
bin1000010101011001001…
…0111000001110100010
3111200120120122111200021
42011112102320032202
54321214004211432
6145435440544054
713226114312314
oct2052622701642
9450516574607
10143181710242
11557a538513a
12238bb32202a
131066aac898c
146d040157b4
153ad020a697
hex21564b83a2

143181710242 has 8 divisors (see below), whose sum is σ = 215897029632. Its totient is φ = 71216033700.

The previous prime is 143181710233. The next prime is 143181710281. The reversal of 143181710242 is 242017181341.

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

It is a junction number, because it is equal to n+sod(n) for n = 143181710198 and 143181710207.

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, 187410234 + ... + 187410997.

It is an arithmetic number, because the mean of its divisors is an integer number (26987128704).

Almost surely, 2143181710242 is an apocalyptic number.

143181710242 is a deficient number, since it is larger than the sum of its proper divisors (72715319390).

143181710242 is a wasteful number, since it uses less digits than its factorization.

143181710242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374821424.

The product of its (nonzero) digits is 10752, while the sum is 34.

Adding to 143181710242 its reverse (242017181341), we get a palindrome (385198891583).

The spelling of 143181710242 in words is "one hundred forty-three billion, one hundred eighty-one million, seven hundred ten thousand, two hundred forty-two".

Divisors: 1 2 191 382 374821231 749642462 71590855121 143181710242