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87184190016 = 263274112521
BaseRepresentation
bin101000100110010010…
…1010010101001000000
322100001000102201222200
41101030211102221000
52412023123040031
6104015111433200
76204335250000
oct1211445225100
9270030381880
1087184190016
1133a7a225400
1214a91985800
1382b564ab21
144310d60000
15240406c8e6
hex144c952a40

87184190016 has 630 divisors, whose sum is σ = 321057135126. Its totient is φ = 22601779200.

The previous prime is 87184189997. The next prime is 87184190021. The reversal of 87184190016 is 61009148178.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 66936038400 + 20248151616 = 258720^2 + 142296^2 .

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 89 ways as a sum of consecutive naturals, for example, 167339836 + ... + 167340356.

Almost surely, 287184190016 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 87184190016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160528567563).

87184190016 is an abundant number, since it is smaller than the sum of its proper divisors (233872945110).

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

87184190016 is a wasteful number, since it uses less digits than its factorization.

87184190016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 589 (or 544 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 45.

The spelling of 87184190016 in words is "eighty-seven billion, one hundred eighty-four million, one hundred ninety thousand, sixteen".