Base | Representation |
---|---|
bin | 101000101100011100… |
… | …1001101111011011000 |
3 | 22100120102002120112220 |
4 | 1101120321031323120 |
5 | 2412434012141214 |
6 | 104051410504040 |
7 | 6212424015036 |
oct | 1213071157330 |
9 | 270512076486 |
10 | 87390740184 |
11 | 34075881620 |
12 | 14b2ab95020 |
13 | 8319389667 |
14 | 4330569556 |
15 | 241726c9a9 |
hex | 1458e4ded8 |
87390740184 has 64 divisors (see below), whose sum is σ = 238499735040. Its totient is φ = 26464114560.
The previous prime is 87390740161. The next prime is 87390740191. The reversal of 87390740184 is 48104709378.
It is a super-3 number, since 3×873907401843 (a number of 34 digits) contains 333 as substring.
It is a congruent number.
It is an unprimeable number.
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 15 ways as a sum of consecutive naturals, for example, 281262 + ... + 503874.
It is an arithmetic number, because the mean of its divisors is an integer number (3726558360).
Almost surely, 287390740184 is an apocalyptic number.
It is an amenable number.
87390740184 is an abundant number, since it is smaller than the sum of its proper divisors (151108994856).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87390740184 is a wasteful number, since it uses less digits than its factorization.
87390740184 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 224120 (or 224116 counting only the distinct ones).
The product of its (nonzero) digits is 1354752, while the sum is 51.
The spelling of 87390740184 in words is "eighty-seven billion, three hundred ninety million, seven hundred forty thousand, one hundred eighty-four".
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