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38080385280 = 2833572113199
BaseRepresentation
bin100011011101110001…
…001001000100000000
310122021212222000011000
4203131301021010000
51110442034312110
625254402452000
72515444635300
oct433561110400
9118255860130
1038080385280
11151714260a3
127469064000
13378b471a72
141bb3679600
15ecd2021c0
hex8ddc49100

38080385280 has 864 divisors, whose sum is σ = 159382944000. Its totient is φ = 8583708672.

The previous prime is 38080385263. The next prime is 38080385293. The reversal of 38080385280 is 8258308083.

It is a tau number, because it is divible by the number of its divisors (864).

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

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, 191358621 + ... + 191358819.

It is an arithmetic number, because the mean of its divisors is an integer number (184471000).

Almost surely, 238080385280 is an apocalyptic number.

38080385280 is a gapful number since it is divisible by the number (30) 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 38080385280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79691472000).

38080385280 is an abundant number, since it is smaller than the sum of its proper divisors (121302558720).

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

38080385280 is a wasteful number, since it uses less digits than its factorization.

38080385280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356 (or 329 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 45.

The spelling of 38080385280 in words is "thirty-eight billion, eighty million, three hundred eighty-five thousand, two hundred eighty".