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20061445303121 = 67299424556763
BaseRepresentation
bin1001000111110111010110…
…10100100010101101010001
32122000212002121122022120012
410203323223110202231101
510112141314444144441
6110400033432124305
74140251213335205
oct443735324425521
978025077568505
1020061445303121
116435013966792
122300061536695
13b26a2b2c1c71
144d4d9ca56b05
1524bc9e42b9eb
hex123eeb522b51

20061445303121 has 4 divisors (see below), whose sum is σ = 20360869859952. Its totient is φ = 19762020746292.

The previous prime is 20061445303091. The next prime is 20061445303147. The reversal of 20061445303121 is 12130354416002.

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 a cyclic number.

It is not a de Polignac number, because 20061445303121 - 214 = 20061445286737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20061445303021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149712278315 + ... + 149712278448.

It is an arithmetic number, because the mean of its divisors is an integer number (5090217464988).

Almost surely, 220061445303121 is an apocalyptic number.

It is an amenable number.

20061445303121 is a deficient number, since it is larger than the sum of its proper divisors (299424556831).

20061445303121 is an equidigital number, since it uses as much as digits as its factorization.

20061445303121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299424556830.

The product of its (nonzero) digits is 17280, while the sum is 32.

Adding to 20061445303121 its reverse (12130354416002), we get a palindrome (32191799719123).

The spelling of 20061445303121 in words is "twenty trillion, sixty-one billion, four hundred forty-five million, three hundred three thousand, one hundred twenty-one".

Divisors: 1 67 299424556763 20061445303121