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20788044101718 = 2324547141144499
BaseRepresentation
bin1001011101000000101111…
…11110111111100001010110
32201121022120112110200110220
410232200113332333201112
510211042403242223333
6112113521242055210
74243613053250415
oct456402776774126
981538515420426
1020788044101718
116695183a52463
1223b8a41aaa506
13b7a3c529a38a
1451c20a7a547c
15260b287198b3
hex12e817fbf856

20788044101718 has 16 divisors (see below), whose sum is σ = 41577782232000. Its totient is φ = 6929065695816.

The previous prime is 20788044101701. The next prime is 20788044101743. The reversal of 20788044101718 is 81710144088702.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70424968 + ... + 70719531.

It is an arithmetic number, because the mean of its divisors is an integer number (2598611389500).

Almost surely, 220788044101718 is an apocalyptic number.

20788044101718 is an abundant number, since it is smaller than the sum of its proper divisors (20789738130282).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20788044101718 is a wasteful number, since it uses less digits than its factorization.

20788044101718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141169051.

The product of its (nonzero) digits is 802816, while the sum is 51.

The spelling of 20788044101718 in words is "twenty trillion, seven hundred eighty-eight billion, forty-four million, one hundred one thousand, seven hundred eighteen".

Divisors: 1 2 3 6 24547 49094 73641 147282 141144499 282288998 423433497 846866994 3464674016953 6929348033906 10394022050859 20788044101718