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20541414401 = 31289240169
BaseRepresentation
bin10011001000010111…
…010001110000000001
31222000120021222011222
4103020113101300001
5314032100230101
613234145444425
71325015066354
oct231027216001
958016258158
1020541414401
118791102742
123b93340715
131c249002a1
14dcc17c29b
1580356501b
hex4c85d1c01

20541414401 has 12 divisors (see below), whose sum is σ = 21463992900. Its totient is φ = 19655349120.

The previous prime is 20541414371. The next prime is 20541414403. The reversal of 20541414401 is 10441414502.

It can be written as a sum of positive squares in 2 ways, for example, as 13007174401 + 7534240000 = 114049^2 + 86800^2 .

It is not a de Polignac number, because 20541414401 - 210 = 20541413377 is a prime.

It is a super-2 number, since 2×205414144012 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20541414403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34556 + ... + 205613.

It is an arithmetic number, because the mean of its divisors is an integer number (1788666075).

Almost surely, 220541414401 is an apocalyptic number.

It is an amenable number.

20541414401 is a deficient number, since it is larger than the sum of its proper divisors (922578499).

20541414401 is an equidigital number, since it uses as much as digits as its factorization.

20541414401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240320 (or 240289 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 26.

Adding to 20541414401 its reverse (10441414502), we get a palindrome (30982828903).

The spelling of 20541414401 in words is "twenty billion, five hundred forty-one million, four hundred fourteen thousand, four hundred one".

Divisors: 1 31 89 961 2759 85529 240169 7445239 21375041 230802409 662626271 20541414401