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20752106206908 = 2233155785231739
BaseRepresentation
bin1001011011111101110011…
…11010110011011010111100
32201110212210221222110201210
410231332321322303122330
510210000303142110113
6112045215212204420
74241201352216036
oct455767172633274
981425727873653
1020752106206908
116680a11a4714a
1223b1a92469710
13b76bb897276b
1451a59b8b6c56
1525ec236746c3
hex12dfb9eb36bc

20752106206908 has 24 divisors (see below), whose sum is σ = 49983567639040. Its totient is φ = 6694227808560.

The previous prime is 20752106206823. The next prime is 20752106206919. The reversal of 20752106206908 is 80960260125702.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27892615498 + ... + 27892616241.

Almost surely, 220752106206908 is an apocalyptic number.

It is an amenable number.

20752106206908 is an abundant number, since it is smaller than the sum of its proper divisors (29231461432132).

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

20752106206908 is a wasteful number, since it uses less digits than its factorization.

20752106206908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55785231777 (or 55785231775 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 48.

The spelling of 20752106206908 in words is "twenty trillion, seven hundred fifty-two billion, one hundred six million, two hundred six thousand, nine hundred eight".

Divisors: 1 2 3 4 6 12 31 62 93 124 186 372 55785231739 111570463478 167355695217 223140926956 334711390434 669422780868 1729342183909 3458684367818 5188026551727 6917368735636 10376053103454 20752106206908