21087941 is an odd 8-digits composite number following 21087940
and preceding 21087942 . In scientific notation, it is written as 2.1087941 × 10^7.
The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors.
There are 17289360 positive integers (up to 21087941) that are relatively prime to 21087941.
21087941 has 8 divisors, whose sum is 25148544
The reverse of 21087941 is 14978012
Previous prime number is 23
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty-one million eighty-seven thousand nine hundred forty-one
Scientific notation
2.1087941 × 10^7
Engineering notation
2.1087941 × 10^6
Prime Factorization
7 × 23 × 130981
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21087941
Product of the distinct prime numbers
The prime factorization of 21087941 is 7 × 23 × 130981.
Since it has a total of 3 prime factors.
3 , 4 , 12 , 2 , 339 , 925 , 8131 , 4503 , 79195 , 9355 , 950122 , 837365 , 4984824 , 5255005 , 13168070 , 10792321 , 959772497 , 293329413 , 4422279451 , 6816886958
n×2
42175882
n×3
63263823
n×4
84351764
n×5
105439705
n÷2
10543970.5
n÷3
7029313.6666667
n÷3
5271985.25
n÷5
4217588.2
n2
444701255619481
n3
9.3778338411295E+21
n4
1.9775920674954E+29
n5
4.1703344841412E+36
2 √n
4592.1608203546
3 √n
276.27699646763
4 √n
67.765483989673
5 √n
29.161296965206
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21087940
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21087941 can be divided by 8 positive divisors.
The sum of these divisors (counting 21087941) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000011100011011000101
3
Ternary
1110200101012212
4
Quaternary
1100130123011
5
Quinary
20344303231
6
Senary
2031553205
8
Octal
120343305
10
Decimal
21087941
12
Duodecimal
708b805
16
Hexadecimal
141c6c5
20
Vigesimal
6bfjh1
36
Base36
cjzk5
md5
aec19954c928b1e42ed954210477aef5
sha1
be77fb45e8c4111e01c593fa6c4358b523cf511d
sha256
82bf4505f8aeb8ab3aae83c9e530a772f4c6d9889e7224d00582ce3e9c204926
sha512
c73251b18b7b0701478c63ef4f32dd25f96c05b591b4d1d87ccce4892d3662eb91f1a711121d08e1bcfce23600f206927ff437976434ed9afdc5e04212c7e53f
ripemd-160
fec48a21256891b33227772defdb87ff90f36b59
Diameter
42175882
Circumference
132499441.04987
Area
1.3970701976963E+15
Volume
3.9281778535838E+22
Surface area
5.5882807907853E+15
Circumference
132499441.04987
Perimeter
84351764
Area
444701255619481
Diagonal
29822852.164724
Surface area
2668207533716886
Volume
9.3778338411295E+21
Space diagonal
36525385.239015
Perimeter
63263823
Area
1.9256129223065E+14
Altitude
18262692.619507
Surface area
1.9256129223065E+14
Volume
1.1051883169839E+21
Height
9940950.7215746