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20313100421041 = 137148270805993
BaseRepresentation
bin1001001111001100000110…
…01000101000011110110001
32122220220122220010212122011
410213212003020220132301
510130302212201433131
6111111413130442521
74164400364466511
oct447460310503661
978826586125564
1020313100421041
11652181269858a
122340994293441
13b4469524466c
145032331c9841
152535cc6d10b1
hex1279832287b1

20313100421041 has 4 divisors (see below), whose sum is σ = 20461371227172. Its totient is φ = 20164829614912.

The previous prime is 20313100420939. The next prime is 20313100421057. The reversal of 20313100421041 is 14012400131302.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4821823098225 + 15491277322816 = 2195865^2 + 3935896^2 .

It is a cyclic number.

It is not a de Polignac number, because 20313100421041 - 213 = 20313100412849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20313100427041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74135402860 + ... + 74135403133.

It is an arithmetic number, because the mean of its divisors is an integer number (5115342806793).

Almost surely, 220313100421041 is an apocalyptic number.

It is an amenable number.

20313100421041 is a deficient number, since it is larger than the sum of its proper divisors (148270806131).

20313100421041 is a wasteful number, since it uses less digits than its factorization.

20313100421041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148270806130.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 20313100421041 its reverse (14012400131302), we get a palindrome (34325500552343).

The spelling of 20313100421041 in words is "twenty trillion, three hundred thirteen billion, one hundred million, four hundred twenty-one thousand, forty-one".

Divisors: 1 137 148270805993 20313100421041