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20031040848 = 2437313313019
BaseRepresentation
bin10010101001111100…
…010110110101010000
31220200222221022021210
4102221330112311100
5312010421301343
613111354420120
71306250016000
oct225174266520
956628838253
1020031040848
11854a000515
123a70431640
131b72c555c0
14d80486000
157c384d333
hex4a9f16d50

20031040848 has 320 divisors, whose sum is σ = 67106816000. Its totient is φ = 5110801920.

The previous prime is 20031040847. The next prime is 20031040867. The reversal of 20031040848 is 84804013002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20031040847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6633483 + ... + 6636501.

It is an arithmetic number, because the mean of its divisors is an integer number (209708800).

Almost surely, 220031040848 is an apocalyptic number.

20031040848 is a gapful number since it is divisible by the number (28) 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 20031040848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33553408000).

20031040848 is an abundant number, since it is smaller than the sum of its proper divisors (47075775152).

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

20031040848 is a wasteful number, since it uses less digits than its factorization.

20031040848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3095 (or 3075 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 30.

The spelling of 20031040848 in words is "twenty billion, thirty-one million, forty thousand, eight hundred forty-eight".