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20136470716660 = 2251006823535833
BaseRepresentation
bin1001001010000011000110…
…01011110010000011110100
32122022000202021012012211011
410211001203023302003310
510114403443000413120
6110454322243122004
74145545341666244
oct445014313620364
978260667165734
1020136470716660
116463913843391
1223126bb373304
13b30b2692569c
144d8878c67b24
1524dbe0d13c5a
hex1250632f20f4

20136470716660 has 12 divisors (see below), whose sum is σ = 42286588505028. Its totient is φ = 8054588286656.

The previous prime is 20136470716657. The next prime is 20136470716669. The reversal of 20136470716660 is 6661707463102.

It can be written as a sum of positive squares in 2 ways, for example, as 7690660425616 + 12445810291044 = 2773204^2 + 3527862^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20136470716669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 503411767897 + ... + 503411767936.

It is an arithmetic number, because the mean of its divisors is an integer number (3523882375419).

Almost surely, 220136470716660 is an apocalyptic number.

20136470716660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20136470716660 is an abundant number, since it is smaller than the sum of its proper divisors (22150117788368).

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

20136470716660 is a wasteful number, since it uses less digits than its factorization.

20136470716660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1006823535842 (or 1006823535840 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 49.

The spelling of 20136470716660 in words is "twenty trillion, one hundred thirty-six billion, four hundred seventy million, seven hundred sixteen thousand, six hundred sixty".

Divisors: 1 2 4 5 10 20 1006823535833 2013647071666 4027294143332 5034117679165 10068235358330 20136470716660