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143109163 = 1373104231
BaseRepresentation
bin10001000011110…
…10110000101011
3100222021200212101
420201322300223
5243113443123
622111154231
73355256611
oct1041726053
9328250771
10143109163
117386603a
123bb15977
13238585a2
14150136b1
15c86caad
hex887ac2b

143109163 has 4 divisors (see below), whose sum is σ = 143214768. Its totient is φ = 143003560.

The previous prime is 143109157. The next prime is 143109167. The reversal of 143109163 is 361901341.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-143109163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143109167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50743 + ... + 53488.

It is an arithmetic number, because the mean of its divisors is an integer number (35803692).

Almost surely, 2143109163 is an apocalyptic number.

143109163 is a deficient number, since it is larger than the sum of its proper divisors (105605).

143109163 is a wasteful number, since it uses less digits than its factorization.

143109163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105604.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 143109163 is about 11962.8242066830. The cubic root of 143109163 is about 523.0651842316.

The spelling of 143109163 in words is "one hundred forty-three million, one hundred nine thousand, one hundred sixty-three".

Divisors: 1 1373 104231 143109163