2187890 is an even 7-digits composite number following 2187889
and preceding 2187891 . In scientific notation, it is written as 2.187890 × 10^6.
The sum of its digits is 35. It has a total of 4 prime factors and 16 positive divisors.
There are 868224 positive integers (up to 2187890) that are relatively prime to 2187890.
2187890 has 16 divisors, whose sum is 3969432
The reverse of 2187890 is 0987812
Previous prime number is 137
Is Prime? no
Number parity even
Number length 7
Sum of Digits 35
Digital Root 8
Name
two million one hundred eighty-seven thousand eight hundred ninety
Scientific notation
2.187890 × 10^6
Engineering notation
2.187890 × 10^6
Prime Factorization
2 × 5 × 137 × 1597
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
2187890
Product of the distinct prime numbers
The prime factorization of 2187890 is 2 × 5 × 137 × 1597.
Since it has a total of 4 prime factors.
3 , 9 , 6 , 3 , 54 , 573 , 8613 , 6600 , 49130 , 16387 , 202967 , 331987 , 611449 , 3477399 , 6574650 , 32834265 , 749239944 , 146036282 , 2963529355 , 1494519811
n×2
4375780
n×3
6563670
n×4
8751560
n×5
10939450
n÷2
1093945
n÷3
729296.66666667
n÷3
546972.5
n÷5
437578
n2
4786862652100
n3
1.0473128927903E+19
n4
2.291405405007E+25
n5
5.0133429715607E+31
2 √n
1479.1517839627
3 √n
129.82006665052
4 √n
38.459742380347
5 √n
18.535533756461
1 , 2 , 5 , 10 , 137 , 274 , 685 , 1370 , 1597 , 3194 , 7985 , 15970 , 218789 , 437578 , 1093945 , 2187890
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-2187889
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 2187890 can be divided by 16 positive divisors.
The sum of these divisors (counting 2187890) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1000010110001001110010
3
Ternary
11010011012222
4
Quaternary
20112021302
5
Quinary
1030003030
6
Senary
114521042
8
Octal
10261162
10
Decimal
2187890
12
Duodecimal
896182
16
Hexadecimal
216272
20
Vigesimal
dd9ea
36
Base36
1aw6q
md5
69bda56b9c1430cfe09a786b38973989
sha1
af89ddd8978dd27faf4950dda768fb84f106a8b7
sha256
26e70bbeef00215467353f2cf5cba0f204bdf81fbfa4f15f108de27bf2b5b88c
sha512
17ac3349d300337e2c012e077f7b143c292766ecaff846df7dc5a33d0352d2109696b0590aea546010818b25895d388515519fc75ef3fb5c264e3c0fae539969
ripemd-160
4d70169c56b8fdb626414503b3365f14ad6fea21
Diameter
4375780
Circumference
13746918.301725
Area
15038372541581
Volume
4.3869739866665E+19
Surface area
60153490166323
Circumference
13746918.301725
Perimeter
8751560
Area
4786862652100
Diagonal
3094143.7109805
Surface area
28721175912600
Volume
1.0473128927903E+19
Space diagonal
3789536.6413719
Perimeter
6563670
Area
2072772330572.8
Altitude
1894768.3206859
Surface area
2072772330572.8
Volume
1.2342700808602E+18
Height
1031381.2369935