Base | Representation |
---|---|
bin | 101000111110001001… |
… | …0101001111001000100 |
3 | 22102002210120100000000 |
4 | 1101330102221321010 |
5 | 2420143030022014 |
6 | 104230343321300 |
7 | 6233224565352 |
oct | 1217422517104 |
9 | 272083510000 |
10 | 87984610884 |
11 | 34350023455 |
12 | 15075a50230 |
13 | 83b241a441 |
14 | 43893987d2 |
15 | 244e479509 |
hex | 147c4a9e44 |
87984610884 has 81 divisors (see below), whose sum is σ = 231074070591. Its totient is φ = 29312186040.
The previous prime is 87984610873. The next prime is 87984610921. The reversal of 87984610884 is 48801648978.
The square root of 87984610884 is 296622.
It is a perfect power (a square), and thus also a powerful number.
87984610884 is a `hidden beast` number, since 8 + 7 + 9 + 8 + 4 + 610 + 8 + 8 + 4 = 666.
It is a tau number, because it is divible by the number of its divisors (81).
It is a super-2 number, since 2×879846108842 (a number of 23 digits) contains 22 as substring.
It is an unprimeable number.
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 26 ways as a sum of consecutive naturals, for example, 48051849 + ... + 48053679.
Almost surely, 287984610884 is an apocalyptic number.
87984610884 is the 296622-nd square number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 87984610884
87984610884 is an abundant number, since it is smaller than the sum of its proper divisors (143089459707).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87984610884 is an frugal number, since it uses more digits than its factorization.
87984610884 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3690 (or 1836 counting only the distinct ones).
The product of its (nonzero) digits is 24772608, while the sum is 63.
The spelling of 87984610884 in words is "eighty-seven billion, nine hundred eighty-four million, six hundred ten thousand, eight hundred eighty-four".
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