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20143041 = 311359419
BaseRepresentation
bin100110011010…
…1101111000001
31101220101001120
41030311233001
520124034131
61555422453
7333133032
oct114655701
941811046
1020143041
1110408846
1268b4a29
134233579
142964a89
151b7d496
hex1335bc1

20143041 has 8 divisors (see below), whose sum is σ = 27095520. Its totient is φ = 13309632.

The previous prime is 20143037. The next prime is 20143043. The reversal of 20143041 is 14034102.

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

It is not a de Polignac number, because 20143041 - 22 = 20143037 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20143041.

It is not an unprimeable number, because it can be changed into a prime (20143043) 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 7 ways as a sum of consecutive naturals, for example, 29371 + ... + 30048.

It is an arithmetic number, because the mean of its divisors is an integer number (3386940).

Almost surely, 220143041 is an apocalyptic number.

It is an amenable number.

20143041 is a deficient number, since it is larger than the sum of its proper divisors (6952479).

20143041 is a wasteful number, since it uses less digits than its factorization.

20143041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59535.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 20143041 is about 4488.0999320425. The cubic root of 20143041 is about 272.0873466953.

Adding to 20143041 its reverse (14034102), we get a palindrome (34177143).

The spelling of 20143041 in words is "twenty million, one hundred forty-three thousand, forty-one".

Divisors: 1 3 113 339 59419 178257 6714347 20143041