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143142208021 = 5919712315427
BaseRepresentation
bin1000010101001111110…
…0001100001000010101
3111200110211022120211001
42011103330030020111
54321123401124041
6145431510143301
713225124456431
oct2052374141025
9450424276731
10143142208021
115578505457a
12238aa051b31
1310662877897
146cdca919c1
153acba06131
hex2153f0c215

143142208021 has 8 divisors (see below), whose sum is σ = 146307284640. Its totient is φ = 140001762768.

The previous prime is 143142208019. The next prime is 143142208031. The reversal of 143142208021 is 120802241341.

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

It is a cyclic number.

It is not a de Polignac number, because 143142208021 - 21 = 143142208019 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143142208031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6146091 + ... + 6169336.

It is an arithmetic number, because the mean of its divisors is an integer number (18288410580).

Almost surely, 2143142208021 is an apocalyptic number.

It is an amenable number.

143142208021 is a deficient number, since it is larger than the sum of its proper divisors (3165076619).

143142208021 is a wasteful number, since it uses less digits than its factorization.

143142208021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12315683.

The product of its (nonzero) digits is 3072, while the sum is 28.

Adding to 143142208021 its reverse (120802241341), we get a palindrome (263944449362).

The spelling of 143142208021 in words is "one hundred forty-three billion, one hundred forty-two million, two hundred eight thousand, twenty-one".

Divisors: 1 59 197 11623 12315427 726610193 2426139119 143142208021