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20508120595232 = 2523831037614283
BaseRepresentation
bin1001010100110111010110…
…01111100011101100100000
32200121120001012000012100122
410222123223033203230200
510142001112333021412
6111341144525535412
74214443226562104
oct452335317435440
980546035005318
1020508120595232
116597499480966
122372740114568
13b59ba494973a
1450c853b7b904
152586e3886572
hex12a6eb3e3b20

20508120595232 has 192 divisors, whose sum is σ = 43119016851456. Its totient is φ = 9581134632960.

The previous prime is 20508120595231. The next prime is 20508120595253. The reversal of 20508120595232 is 23259502180502.

It is a super-2 number, since 2×205081205952322 (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20508120595231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4788258563 + ... + 4788262845.

It is an arithmetic number, because the mean of its divisors is an integer number (224578212768).

Almost surely, 220508120595232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20508120595232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21559508425728).

20508120595232 is an abundant number, since it is smaller than the sum of its proper divisors (22610896256224).

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

20508120595232 is a wasteful number, since it uses less digits than its factorization.

20508120595232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5263 (or 5255 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 44.

The spelling of 20508120595232 in words is "twenty trillion, five hundred eight billion, one hundred twenty million, five hundred ninety-five thousand, two hundred thirty-two".