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20085024960 = 26325711136967
BaseRepresentation
bin10010101101001010…
…010010100011000000
31220211202111222120100
4102231022102203000
5312113231244320
613121003442400
71310503616040
oct225512224300
956752458510
1020085024960
118577522590
123a86526400
131b811a7270
14d876d9720
157c8463790
hex4ad2928c0

20085024960 has 672 divisors, whose sum is σ = 92769610752. Its totient is φ = 3851919360.

The previous prime is 20085024959. The next prime is 20085024977. The reversal of 20085024960 is 6942058002.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (672).

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, 2879397 + ... + 2886363.

It is an arithmetic number, because the mean of its divisors is an integer number (138050016).

Almost surely, 220085024960 is an apocalyptic number.

20085024960 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 20085024960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46384805376).

20085024960 is an abundant number, since it is smaller than the sum of its proper divisors (72684585792).

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

20085024960 is a wasteful number, since it uses less digits than its factorization.

20085024960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7021 (or 7008 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The spelling of 20085024960 in words is "twenty billion, eighty-five million, twenty-four thousand, nine hundred sixty".