21103887 is an odd 8-digits composite number following 21103886
and preceding 21103888 . In scientific notation, it is written as 2.1103887 × 10^7.
The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors.
There are 11854272 positive integers (up to 21103887) that are relatively prime to 21103887.
21103887 has 16 divisors, whose sum is 32705280
The reverse of 21103887 is 78830112
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty-one million one hundred three thousand eight hundred eighty-seven
Scientific notation
2.1103887 × 10^7
Engineering notation
2.1103887 × 10^6
Prime Factorization
3 × 59 × 7 × 17033
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21103887
Product of the distinct prime numbers
The prime factorization of 21103887 is 3 × 59 × 7 × 17033.
Since it has a total of 4 prime factors.
9 , 5 , 1 , 97 , 344 , 741 , 5541 , 2758 , 40975 , 17396 , 701262 , 420583 , 5599632 , 2521437 , 72085518 , 82991371 , 58932833 , 849394745 , 1552294031 , 3619921705
n×2
42207774
n×3
63311661
n×4
84415548
n×5
105519435
n÷2
10551943.5
n÷3
7034629
n÷3
5275971.75
n÷5
4220777.4
n2
445374046508769
n3
9.3991235502538E+21
n4
1.983580413036E+29
n5
4.1861256892124E+36
2 √n
4593.8967119429
3 √n
276.3466160829
4 √n
67.778290860296
5 √n
29.165705792567
1 , 3 , 7 , 21 , 59 , 177 , 413 , 1239 , 17033 , 51099 , 119231 , 357693 , 1004947 , 3014841 , 7034629 , 21103887
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
-21103886
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 21103887 can be divided by 16 positive divisors.
The sum of these divisors (counting 21103887) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000100000010100001111
3
Ternary
1110201012002110
4
Quaternary
1100200110033
5
Quinary
20400311022
6
Senary
2032155103
8
Octal
120402417
10
Decimal
21103887
12
Duodecimal
7098a93
16
Hexadecimal
142050f
20
Vigesimal
6bhje7
36
Base36
ckbv3
md5
5c1d95ec536a6be82a1f784c9b964c6e
sha1
b6f166376b3f2dd4df250bab8b712a9e29fb31bf
sha256
84285603d5adc9624f05a356813b6a4a9b7149b8559c9b61cda483cf28344820
sha512
0b72c1d2cdc14fdd564e4bd9d7ff49f95e7111287a132414f682af04484998ada7c41a2a7c12d44a21ef112b34466ac31115a6bb869aced14c3bdab54d3db839
ripemd-160
1fbf1b0eb29d809bcf1645ac4d788af6d4c9def6
Diameter
42207774
Circumference
132599632.72278
Area
1.3991838326115E+15
Volume
3.937095666088E+22
Surface area
5.596735330446E+15
Circumference
132599632.72278
Perimeter
84415548
Area
445374046508769
Diagonal
29845403.214189
Surface area
2672244279052614
Volume
9.3991235502538E+21
Space diagonal
36553004.521192
Perimeter
63311661
Area
1.9285261923143E+14
Altitude
18276502.260596
Surface area
1.9285261923143E+14
Volume
1.1076973332658E+21
Height
9948467.7380631