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87408903600 = 24335237435087
BaseRepresentation
bin101000101100111111…
…0100000010110110000
322100121200021101002000
41101121332200112300
52413003134403400
6104053300054000
76213034264434
oct1213176402660
9270550241060
1087408903600
1134085058007
1214b35094300
138320078b45
144332b369c4
152418b59600
hex1459fa05b0

87408903600 has 480 divisors, whose sum is σ = 327014307840. Its totient is φ = 22147292160.

The previous prime is 87408903583. The next prime is 87408903607. The reversal of 87408903600 is 630980478.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (87408903607) 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 95 ways as a sum of consecutive naturals, for example, 17180257 + ... + 17185343.

It is an arithmetic number, because the mean of its divisors is an integer number (681279808).

Almost surely, 287408903600 is an apocalyptic number.

87408903600 is a gapful number since it is divisible by the number (80) 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 87408903600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163507153920).

87408903600 is an abundant number, since it is smaller than the sum of its proper divisors (239605404240).

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

87408903600 is a wasteful number, since it uses less digits than its factorization.

87408903600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5194 (or 5177 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The spelling of 87408903600 in words is "eighty-seven billion, four hundred eight million, nine hundred three thousand, six hundred".