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20043115005 = 351782339547
BaseRepresentation
bin10010101010101010…
…011010100111111101
31220201211122201220210
4102222222122213331
5312022014140010
613112505303033
71306454444424
oct225252324775
956654581823
1020043115005
1185558a7a61
123a74494a79
131b755c2284
14d81d0a2bb
157c4935b20
hex4aaa9a9fd

20043115005 has 32 divisors (see below), whose sum is σ = 33963076224. Its totient is φ = 10058582016.

The previous prime is 20043115003. The next prime is 20043115031. The reversal of 20043115005 is 50051134002.

It is not a de Polignac number, because 20043115005 - 21 = 20043115003 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20043115003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2094642 + ... + 2104188.

It is an arithmetic number, because the mean of its divisors is an integer number (1061346132).

Almost surely, 220043115005 is an apocalyptic number.

It is an amenable number.

20043115005 is a deficient number, since it is larger than the sum of its proper divisors (13919961219).

20043115005 is a wasteful number, since it uses less digits than its factorization.

20043115005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17805.

The product of its (nonzero) digits is 600, while the sum is 21.

Adding to 20043115005 its reverse (50051134002), we get a palindrome (70094249007).

The spelling of 20043115005 in words is "twenty billion, forty-three million, one hundred fifteen thousand, five".

Divisors: 1 3 5 15 17 51 85 255 8233 9547 24699 28641 41165 47735 123495 139961 143205 162299 419883 486897 699805 811495 2099415 2434485 78600451 235801353 393002255 1179006765 1336207667 4008623001 6681038335 20043115005