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20488533120 = 2733511241239
BaseRepresentation
bin10011000101001101…
…100011010010000000
31221212212210022201000
4103011031203102000
5313430031024440
613225020212000
71323503441466
oct230515432200
957785708630
1020488533120
118764274200
123b7969a000
131c169765a3
14dc5134836
157edabb730
hex4c5363480

20488533120 has 768 divisors, whose sum is σ = 82047168000. Its totient is φ = 4825497600.

The previous prime is 20488533097. The next prime is 20488533181. The reversal of 20488533120 is 2133588402.

20488533120 is a `hidden beast` number, since 2 + 0 + 488 + 53 + 3 + 120 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 85725961 + ... + 85726199.

It is an arithmetic number, because the mean of its divisors is an integer number (106832250).

Almost surely, 220488533120 is an apocalyptic number.

20488533120 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 20488533120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41023584000).

20488533120 is an abundant number, since it is smaller than the sum of its proper divisors (61558634880).

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

20488533120 is a wasteful number, since it uses less digits than its factorization.

20488533120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330 (or 301 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The spelling of 20488533120 in words is "twenty billion, four hundred eighty-eight million, five hundred thirty-three thousand, one hundred twenty".