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143106513 = 31119722013
BaseRepresentation
bin10001000011110…
…10000111010001
3100222021120020020
420201322013101
5243113402023
622111134053
73355246104
oct1041720721
9328246206
10143106513
1173864050
123bb14329
1323857314
141501273b
15c86bde3
hex887a1d1

143106513 has 16 divisors (see below), whose sum is σ = 209221056. Its totient is φ = 86287040.

The previous prime is 143106511. The next prime is 143106539. The reversal of 143106513 is 315601341.

It is a cyclic number.

It is not a de Polignac number, because 143106513 - 21 = 143106511 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (143106511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4506 + ... + 17507.

It is an arithmetic number, because the mean of its divisors is an integer number (13076316).

Almost surely, 2143106513 is an apocalyptic number.

It is an amenable number.

143106513 is a deficient number, since it is larger than the sum of its proper divisors (66114543).

143106513 is a wasteful number, since it uses less digits than its factorization.

143106513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22224.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 143106513 is about 11962.7134463716. The cubic root of 143106513 is about 523.0619556210.

Adding to 143106513 its reverse (315601341), we get a palindrome (458707854).

The spelling of 143106513 in words is "one hundred forty-three million, one hundred six thousand, five hundred thirteen".

Divisors: 1 3 11 33 197 591 2167 6501 22013 66039 242143 726429 4336561 13009683 47702171 143106513