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20431421301 = 329234843923
BaseRepresentation
bin10011000001110011…
…101011111101110101
31221201220022202000110
4103001303223331311
5313320420440201
613215220133233
71322211133644
oct230163537565
957656282013
1020431421301
118735006255
123b62537219
131c07b9b105
14dbb70935b
157e8a896d6
hex4c1cebf75

20431421301 has 8 divisors (see below), whose sum is σ = 28181270880. Its totient is φ = 13151259632.

The previous prime is 20431421281. The next prime is 20431421303. The reversal of 20431421301 is 10312413402.

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 20431421301 - 27 = 20431421173 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20431421303) 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, 117421875 + ... + 117422048.

It is an arithmetic number, because the mean of its divisors is an integer number (3522658860).

Almost surely, 220431421301 is an apocalyptic number.

It is an amenable number.

20431421301 is a deficient number, since it is larger than the sum of its proper divisors (7749849579).

20431421301 is a wasteful number, since it uses less digits than its factorization.

20431421301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234843955.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 20431421301 its reverse (10312413402), we get a palindrome (30743834703).

The spelling of 20431421301 in words is "twenty billion, four hundred thirty-one million, four hundred twenty-one thousand, three hundred one".

Divisors: 1 3 29 87 234843923 704531769 6810473767 20431421301