Base | Representation |
---|---|
bin | 1010011010101… |
… | …00111001011000 |
3 | 20002102100012102 |
4 | 11031110321120 |
5 | 134332121134 |
6 | 12400502532 |
7 | 2110466600 |
oct | 515247130 |
9 | 202370172 |
10 | 87379544 |
11 | 453615aa |
12 | 2531aa48 |
13 | 15145295 |
14 | b867c00 |
15 | 7a1037e |
hex | 5354e58 |
87379544 has 48 divisors (see below), whose sum is σ = 192559680. Its totient is φ = 37060800.
The previous prime is 87379543. The next prime is 87379549. The reversal of 87379544 is 44597378.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (87379543) by changing a digit.
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 11 ways as a sum of consecutive naturals, for example, 38489 + ... + 40695.
It is an arithmetic number, because the mean of its divisors is an integer number (4011660).
Almost surely, 287379544 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 87379544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96279840).
87379544 is an abundant number, since it is smaller than the sum of its proper divisors (105180136).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87379544 is a wasteful number, since it uses less digits than its factorization.
87379544 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 2328 (or 2317 counting only the distinct ones).
The product of its digits is 846720, while the sum is 47.
The square root of 87379544 is about 9347.7026054534. The cubic root of 87379544 is about 443.7481866222.
It can be divided in two parts, 8737 and 9544, that added together give a palindrome (18281).
The spelling of 87379544 in words is "eighty-seven million, three hundred seventy-nine thousand, five hundred forty-four".
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