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20401010441 = 731361326021
BaseRepresentation
bin10010111111111111…
…101011011100001001
31221122210002201011022
4102333333223130021
5313240124313231
613212212242225
71321361504360
oct227777533411
957583081138
1020401010441
118719925109
123b54310375
131c017b1116
14db76707d7
157e607dc7b
hex4bffeb709

20401010441 has 16 divisors (see below), whose sum is σ = 24075138048. Its totient is φ = 16917163200.

The previous prime is 20401010387. The next prime is 20401010449. The reversal of 20401010441 is 14401010402.

It is not a de Polignac number, because 20401010441 - 230 = 19327268617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20401010449) 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 15 ways as a sum of consecutive naturals, for example, 771011 + ... + 797031.

It is an arithmetic number, because the mean of its divisors is an integer number (1504696128).

Almost surely, 220401010441 is an apocalyptic number.

It is an amenable number.

20401010441 is a deficient number, since it is larger than the sum of its proper divisors (3674127607).

20401010441 is a wasteful number, since it uses less digits than its factorization.

20401010441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29672.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 20401010441 its reverse (14401010402), we get a palindrome (34802020843).

The spelling of 20401010441 in words is "twenty billion, four hundred one million, ten thousand, four hundred forty-one".

Divisors: 1 7 31 217 3613 25291 26021 112003 182147 784021 806651 5646557 94013873 658097111 2914430063 20401010441