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20320410401 = 457182324391
BaseRepresentation
bin10010111011001100…
…001101101100100001
31221110011102210200122
4102323030031230201
5313104011113101
613200212530025
71316362432004
oct227314155441
957404383618
1020320410401
118688384105
123b31320915
131bbaba08a5
14daaa8d53b
157dde5c51b
hex4bb30db21

20320410401 has 8 divisors (see below), whose sum is σ = 20376881664. Its totient is φ = 20263992480.

The previous prime is 20320410349. The next prime is 20320410413. The reversal of 20320410401 is 10401402302.

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 20320410401 - 218 = 20320148257 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20320410401.

It is not an unprimeable number, because it can be changed into a prime (20320410421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 820916 + ... + 845306.

It is an arithmetic number, because the mean of its divisors is an integer number (2547110208).

Almost surely, 220320410401 is an apocalyptic number.

It is an amenable number.

20320410401 is a deficient number, since it is larger than the sum of its proper divisors (56471263).

20320410401 is a wasteful number, since it uses less digits than its factorization.

20320410401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26671.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 20320410401 its reverse (10401402302), we get a palindrome (30721812703).

The spelling of 20320410401 in words is "twenty billion, three hundred twenty million, four hundred ten thousand, four hundred one".

Divisors: 1 457 1823 24391 833111 11146687 44464793 20320410401