Base | Representation |
---|---|
bin | 111110011111011000000 |
3 | 10212000220000 |
4 | 13303323000 |
5 | 1011011210 |
6 | 111520000 |
7 | 23255625 |
oct | 7637300 |
9 | 3760800 |
10 | 2047680 |
11 | 11794a8 |
12 | 829000 |
13 | 56905b |
14 | 3b434c |
15 | 2a6ac0 |
hex | 1f3ec0 |
2047680 has 140 divisors (see below), whose sum is σ = 7376160. Its totient is φ = 539136.
The previous prime is 2047651. The next prime is 2047699. The reversal of 2047680 is 867402.
It is a Harshad number since it is a multiple of its sum of digits (27).
It is a congruent number.
It is an unprimeable number.
It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 25881 + ... + 25959.
22047680 is an apocalyptic number.
2047680 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 2047680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3688080).
2047680 is an abundant number, since it is smaller than the sum of its proper divisors (5328480).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2047680 is an equidigital number, since it uses as much as digits as its factorization.
2047680 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 108 (or 89 counting only the distinct ones).
The product of its (nonzero) digits is 2688, while the sum is 27.
The square root of 2047680 is about 1430.9716978333. The cubic root of 2047680 is about 126.9854696419.
The spelling of 2047680 in words is "two million, forty-seven thousand, six hundred eighty".
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