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BaseRepresentation
bin1111101011111010…
…11100001100011000
3210201220112002111212
413311331130030120
5114221400211410
63511353442252
7415456332203
oct76575341430
923656462455
108421491480
113631792216
121770410388
13a4296a96c
1459c66493a
15344506b05
hex1f5f5c318

8421491480 has 16 divisors (see below), whose sum is σ = 18948355920. Its totient is φ = 3368596576.

The previous prime is 8421491447. The next prime is 8421491489. The reversal of 8421491480 is 841941248.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8421491489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105268604 + ... + 105268683.

It is an arithmetic number, because the mean of its divisors is an integer number (1184272245).

Almost surely, 28421491480 is an apocalyptic number.

It is an amenable number.

8421491480 is an abundant number, since it is smaller than the sum of its proper divisors (10526864440).

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

8421491480 is a wasteful number, since it uses less digits than its factorization.

8421491480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210537298 (or 210537294 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 41.

The square root of 8421491480 is about 91768.6846369719. The cubic root of 8421491480 is about 2034.5248770556.

The spelling of 8421491480 in words is "eight billion, four hundred twenty-one million, four hundred ninety-one thousand, four hundred eighty".