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20344520050415 = 511536816890713
BaseRepresentation
bin1001010000000110100111…
…11001000000011011101111
32200000220202120201102101222
410220003103321000123233
510131311034113103130
6111134050554253555
74166562113104511
oct450032371003357
980026676642358
1020344520050415
116534076208130
122346aa27272bb
13b4763176ba32
14504973db5bb1
1525431ac7ace5
hex1280d3e406ef

20344520050415 has 16 divisors (see below), whose sum is σ = 26633326244256. Its totient is φ = 14795736806400.

The previous prime is 20344520050411. The next prime is 20344520050423. The reversal of 20344520050415 is 51405002544302.

It is not a de Polignac number, because 20344520050415 - 22 = 20344520050411 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 (20344520050411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 492902 + ... + 6397811.

It is an arithmetic number, because the mean of its divisors is an integer number (1664582890266).

Almost surely, 220344520050415 is an apocalyptic number.

20344520050415 is a deficient number, since it is larger than the sum of its proper divisors (6288806193841).

20344520050415 is a wasteful number, since it uses less digits than its factorization.

20344520050415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6944410.

The product of its (nonzero) digits is 96000, while the sum is 35.

Adding to 20344520050415 its reverse (51405002544302), we get a palindrome (71749522594717).

The spelling of 20344520050415 in words is "twenty trillion, three hundred forty-four billion, five hundred twenty million, fifty thousand, four hundred fifteen".

Divisors: 1 5 11 55 53681 268405 590491 2952455 6890713 34453565 75797843 378989215 369900364553 1849501822765 4068904010083 20344520050415