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20410144013 = 72915734859
BaseRepresentation
bin10011000000100010…
…100001010100001101
31221200102021202001202
4103000202201110031
5313244444102023
613213140115245
71321532235020
oct230042412415
957612252052
1020410144013
118723aa3316
123b57395b25
131c0365b4bc
14db896b1b7
157e6c85128
hex4c08a150d

20410144013 has 4 divisors (see below), whose sum is σ = 23325878880. Its totient is φ = 17494409148.

The previous prime is 20410144009. The next prime is 20410144037. The reversal of 20410144013 is 31044101402.

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, and also an emirpimes, since its reverse is a distinct semiprime: 31044101402 = 215522050701.

It is a cyclic number.

It is not a de Polignac number, because 20410144013 - 22 = 20410144009 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20410144913) 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, 1457867423 + ... + 1457867436.

It is an arithmetic number, because the mean of its divisors is an integer number (5831469720).

Almost surely, 220410144013 is an apocalyptic number.

It is an amenable number.

20410144013 is a deficient number, since it is larger than the sum of its proper divisors (2915734867).

20410144013 is an equidigital number, since it uses as much as digits as its factorization.

20410144013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2915734866.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 20410144013 its reverse (31044101402), we get a palindrome (51454245415).

The spelling of 20410144013 in words is "twenty billion, four hundred ten million, one hundred forty-four thousand, thirteen".

Divisors: 1 7 2915734859 20410144013