Base | Representation |
---|---|
bin | 111111101101111001000 |
3 | 10221002000220 |
4 | 13331233020 |
5 | 1013303010 |
6 | 112430040 |
7 | 23514054 |
oct | 7755710 |
9 | 3832026 |
10 | 2087880 |
11 | 11a6723 |
12 | 848320 |
13 | 581442 |
14 | 3c4c64 |
15 | 2b3970 |
hex | 1fdbc8 |
2087880 has 64 divisors (see below), whose sum is σ = 6359040. Its totient is φ = 548352.
The previous prime is 2087879. The next prime is 2087903. The reversal of 2087880 is 887802.
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15172 + ... + 15308.
It is an arithmetic number, because the mean of its divisors is an integer number (99360).
22087880 is an apocalyptic number.
2087880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 2087880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3179520).
2087880 is an abundant number, since it is smaller than the sum of its proper divisors (4271160).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2087880 is a wasteful number, since it uses less digits than its factorization.
2087880 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 278 (or 274 counting only the distinct ones).
The product of its (nonzero) digits is 7168, while the sum is 33.
The square root of 2087880 is about 1444.9498261185. The cubic root of 2087880 is about 127.8110819860.
The spelling of 2087880 in words is "two million, eighty-seven thousand, eight hundred eighty".
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