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20047812572160 = 2103251731825551
BaseRepresentation
bin1001000111011101111101…
…01111110011010000000000
32121222112220112020211101200
410203232332233303100000
510111430410004302120
6110345500555301200
74136256325126662
oct443567657632000
977875815224350
1020047812572160
11642a25860818a
1222b9497a4a800
13b25667b04659
144d4468264532
1524b752693e90
hex123bbebf3400

20047812572160 has 528 divisors, whose sum is σ = 75924049324032. Its totient is φ = 4869292032000.

The previous prime is 20047812572141. The next prime is 20047812572167. The reversal of 20047812572160 is 6127521874002.

20047812572160 is a `hidden beast` number, since 2 + 0 + 0 + 4 + 7 + 8 + 12 + 572 + 1 + 60 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20047812572167) 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 47 ways as a sum of consecutive naturals, for example, 23871385 + ... + 24696935.

Almost surely, 220047812572160 is an apocalyptic number.

20047812572160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20047812572160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37962024662016).

20047812572160 is an abundant number, since it is smaller than the sum of its proper divisors (55876236751872).

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

20047812572160 is a wasteful number, since it uses less digits than its factorization.

20047812572160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 825630 (or 825609 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 45.

The spelling of 20047812572160 in words is "twenty trillion, forty-seven billion, eight hundred twelve million, five hundred seventy-two thousand, one hundred sixty".