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20312202441 = 36770734147
BaseRepresentation
bin10010111010101100…
…111001110011001001
31221102120222210111010
4102322230321303021
5313044410434231
613155320554133
71316232605046
oct227254716311
957376883433
1020312202441
118683788373
123b2a622949
131bb92888cb
14da99541cd
157dd38a546
hex4bab39cc9

20312202441 has 4 divisors (see below), whose sum is σ = 27082936592. Its totient is φ = 13541468292.

The previous prime is 20312202433. The next prime is 20312202481. The reversal of 20312202441 is 14420221302.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 20312202441 - 23 = 20312202433 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20312202481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3385367071 + ... + 3385367076.

It is an arithmetic number, because the mean of its divisors is an integer number (6770734148).

Almost surely, 220312202441 is an apocalyptic number.

It is an amenable number.

20312202441 is a deficient number, since it is larger than the sum of its proper divisors (6770734151).

20312202441 is an equidigital number, since it uses as much as digits as its factorization.

20312202441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6770734150.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 20312202441 its reverse (14420221302), we get a palindrome (34732423743).

The spelling of 20312202441 in words is "twenty billion, three hundred twelve million, two hundred two thousand, four hundred forty-one".

Divisors: 1 3 6770734147 20312202441