2157890 is an even 7-digits composite number following 2157889
and preceding 2157891 . In scientific notation, it is written as 2.157890 × 10^6.
The sum of its digits is 32. It has a total of 5 prime factors and 32 positive divisors.
There are 713664 positive integers (up to 2157890) that are relatively prime to 2157890.
2157890 has 32 divisors, whose sum is 4596480
The reverse of 2157890 is 0987512
Previous prime number is 1063
Is Prime? no
Number parity even
Number length 7
Sum of Digits 32
Digital Root 5
Name
two million one hundred fifty-seven thousand eight hundred ninety
Scientific notation
2.157890 × 10^6
Engineering notation
2.157890 × 10^6
Prime Factorization
2 × 5 × 7 × 1063 × 29
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
2157890
Product of the distinct prime numbers
The prime factorization of 2157890 is 2 × 5 × 7 × 1063 × 29.
Since it has a total of 5 prime factors.
9 , 2 , 24 , 56 , 356 , 653 , 6628 , 7412 , 48074 , 25911 , 412528 , 18090 , 3585711 , 4742902 , 6069302 , 74592263 , 10900319 , 420603250 , 6880545079 , 6657866252
n×2
4315780
n×3
6473670
n×4
8631560
n×5
10789450
n÷2
1078945
n÷3
719296.66666667
n÷3
539472.5
n÷5
431578
n2
4656489252100
n3
1.0048191592214E+19
n4
2.1682892154923E+25
n5
4.6789296152186E+31
2 √n
1468.9758337018
3 √n
129.22397641849
4 √n
38.327220531912
5 √n
18.4844213858
1 , 2 , 5 , 7 , 10 , 14 , 29 , 35 , 58 , 70 , 145 , 203 , 290 , 406 , 1015 , 1063 , 2030 , 2126 , 5315 , 7441 , 10630 , 14882 , 30827 , 37205 , 61654 , 74410 , 154135 , 215789 , 308270 , 431578 , 1078945 , 2157890
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-2157889
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 2157890 can be divided by 32 positive divisors.
The sum of these divisors (counting 2157890) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1000001110110101000010
3
Ternary
11001122001212
4
Quaternary
20032311002
5
Quinary
1023023030
6
Senary
114130122
8
Octal
10166502
10
Decimal
2157890
12
Duodecimal
880942
16
Hexadecimal
20ed42
20
Vigesimal
d9eea
36
Base36
1a91e
md5
dcc5bebeecc9ddf608255711ecd7482c
sha1
673b909d360a82a8e8771a03a21a5ceee561ea8b
sha256
8c626b981295b3a216f03c611f36f3e8546b0dc16788d80804facd307aa16e90
sha512
9dd91a30eb2a0504326b5d0f16dc6733aa0624a7334cac86ad61a58521a523396bff3ea2ff1a549277b1e066f82fcd0e34636d4200e84dcaf7c70fe65ad5ae95
ripemd-160
e882b3e592d1b4dd8d11ad7ab3768d9e9b3750df
Diameter
4315780
Circumference
13558422.74251
Area
14628792425917
Volume
4.2089766517283E+19
Surface area
58515169703669
Circumference
13558422.74251
Perimeter
8631560
Area
4656489252100
Diagonal
3051717.3041093
Surface area
27938935512600
Volume
1.0048191592214E+19
Space diagonal
3737575.1171448
Perimeter
6473670
Area
2016318992383.9
Altitude
1868787.5585724
Surface area
2016318992383.9
Volume
1.184190735586E+18
Height
1017239.1013698