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38881574480 = 245731724903
BaseRepresentation
bin100100001101100001…
…011011111001010000
310201100201112122010002
4210031201123321100
51114112140340410
625510103025132
72544343634000
oct441541337120
9121321478102
1038881574480
11155426a9431
12765143b1a8
133888450008
141c4bc34000
1510287117a5
hex90d85be50

38881574480 has 240 divisors, whose sum is σ = 112011283200. Its totient is φ = 12544100352.

The previous prime is 38881574449. The next prime is 38881574503. The reversal of 38881574480 is 8447518883.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7927709 + ... + 7932611.

It is an arithmetic number, because the mean of its divisors is an integer number (466713680).

Almost surely, 238881574480 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38881574480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56005641600).

38881574480 is an abundant number, since it is smaller than the sum of its proper divisors (73129708720).

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

38881574480 is a wasteful number, since it uses less digits than its factorization.

38881574480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4971 (or 4934 counting only the distinct ones).

The product of its (nonzero) digits is 6881280, while the sum is 56.

The spelling of 38881574480 in words is "thirty-eight billion, eight hundred eighty-one million, five hundred seventy-four thousand, four hundred eighty".