Base | Representation |
---|---|
bin | 1010011000111… |
… | …00010111100000 |
3 | 20001222120120201 |
4 | 11030130113200 |
5 | 134302214000 |
6 | 12351514544 |
7 | 2105513542 |
oct | 514342740 |
9 | 201876521 |
10 | 87148000 |
11 | 45213645 |
12 | 25228a54 |
13 | 15093a84 |
14 | b807692 |
15 | 79b696a |
hex | 531c5e0 |
87148000 has 48 divisors (see below), whose sum is σ = 214132464. Its totient is φ = 34857600.
The previous prime is 87147959. The next prime is 87148021. The reversal of 87148000 is 84178.
It is a self number, because there is not a number n which added to its sum of digits gives 87148000.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6894 + ... + 14893.
It is an arithmetic number, because the mean of its divisors is an integer number (4461093).
Almost surely, 287148000 is an apocalyptic number.
87148000 is a gapful number since it is divisible by the number (80) formed by its first and last digit.
It is an amenable number.
87148000 is an abundant number, since it is smaller than the sum of its proper divisors (126984464).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
87148000 is a wasteful number, since it uses less digits than its factorization.
87148000 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 21812 (or 21794 counting only the distinct ones).
The product of its (nonzero) digits is 1792, while the sum is 28.
The square root of 87148000 is about 9335.3093146398. The cubic root of 87148000 is about 443.3558822960.
The spelling of 87148000 in words is "eighty-seven million, one hundred forty-eight thousand".
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