Base | Representation |
---|---|
bin | 1010011010011… |
… | …01001110110000 |
3 | 20002100202010110 |
4 | 11031031032300 |
5 | 134330120034 |
6 | 12400101320 |
7 | 2110306212 |
oct | 515151660 |
9 | 202322113 |
10 | 87348144 |
11 | 4533aa54 |
12 | 25304840 |
13 | 15133bc0 |
14 | b85a5b2 |
15 | 7a05de9 |
hex | 534d3b0 |
87348144 has 40 divisors (see below), whose sum is σ = 243008752. Its totient is φ = 26876160.
The previous prime is 87348127. The next prime is 87348169. The reversal of 87348144 is 44184378.
It is a Harshad number since it is a multiple of its sum of digits (39).
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 7 ways as a sum of consecutive naturals, for example, 69367 + ... + 70614.
Almost surely, 287348144 is an apocalyptic number.
It is an amenable number.
87348144 is an abundant number, since it is smaller than the sum of its proper divisors (155660608).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87348144 is a wasteful number, since it uses less digits than its factorization.
87348144 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 140005 (or 139999 counting only the distinct ones).
The product of its digits is 86016, while the sum is 39.
The square root of 87348144 is about 9346.0228974682. The cubic root of 87348144 is about 443.6950263447.
The spelling of 87348144 in words is "eighty-seven million, three hundred forty-eight thousand, one hundred forty-four".
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