Base | Representation |
---|---|
bin | 1010011011001… |
… | …00000111001110 |
3 | 20002112111200210 |
4 | 11031210013032 |
5 | 134341114440 |
6 | 12402103250 |
7 | 2111146365 |
oct | 515440716 |
9 | 202474623 |
10 | 87441870 |
11 | 453a440a |
12 | 2534ab26 |
13 | 15167769 |
14 | b8827dc |
15 | 7a23a80 |
hex | 53641ce |
87441870 has 32 divisors (see below), whose sum is σ = 210130848. Its totient is φ = 23287808.
The previous prime is 87441859. The next prime is 87441899. The reversal of 87441870 is 7814478.
It is a congruent number.
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 15 ways as a sum of consecutive naturals, for example, 31582 + ... + 34238.
It is an arithmetic number, because the mean of its divisors is an integer number (6566589).
Almost surely, 287441870 is an apocalyptic number.
87441870 is an abundant number, since it is smaller than the sum of its proper divisors (122688978).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87441870 is a wasteful number, since it uses less digits than its factorization.
87441870 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 3764.
The product of its (nonzero) digits is 50176, while the sum is 39.
The square root of 87441870 is about 9351.0357715068. The cubic root of 87441870 is about 443.8536669787.
The spelling of 87441870 in words is "eighty-seven million, four hundred forty-one thousand, eight hundred seventy".
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