21102690 is an even 8-digits composite number following 21102689
and preceding 21102691 . In scientific notation, it is written as 2.1102690 × 10^7.
The sum of its digits is 21. It has a total of 4 prime factors and 12 positive divisors.
There are 4808256 positive integers (up to 21102690) that are relatively prime to 21102690.
21102690 has 12 divisors, whose sum is 32056626
The reverse of 21102690 is 09620112
Previous prime number is 317
Is Prime? no
Number parity even
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty-one million one hundred two thousand six hundred ninety
Scientific notation
2.1102690 × 10^7
Engineering notation
2.1102690 × 10^6
Prime Factorization
2 × 105 × 317 × 317
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
66570
Product of the distinct prime numbers
The prime factorization of 21102690 is 2 × 105 × 317 × 317.
Since it has a total of 4 prime factors.
5 , 9 , 86 , 35 , 81 , 891 , 1523 , 4567 , 20506 , 16649 , 882507 , 395587 , 8704239 , 4916622 , 15055122 , 38406399 , 46173940 , 399160799 , 8817009833 , 7762892021
n×2
42205380
n×3
63308070
n×4
84410760
n×5
105513450
n÷2
10551345
n÷3
7034230
n÷3
5275672.5
n÷5
4220538
n2
445323525236100
n3
9.3975243027646E+21
n4
1.9831304212871E+29
n5
4.1849386509991E+36
2 √n
4593.7664285421
3 √n
276.3413912452
4 √n
67.777329753702
5 √n
29.165374932741
1 , 2 , 105 , 210 , 317 , 634 , 33285 , 66570 , 100489 , 200978 , 10551345 , 21102690
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21102689
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21102690 can be divided by 12 positive divisors.
The sum of these divisors (counting 21102690) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1010000100000000001100010
3
Ternary
1110201010110010
4
Quaternary
1100200001202
5
Quinary
20400241230
6
Senary
2032145350
8
Octal
120400142
10
Decimal
21102690
12
Duodecimal
7098256
16
Hexadecimal
1420062
20
Vigesimal
6bhgea
36
Base36
ckaxu
md5
1225b967dfc143084292e0a8dcfe44a3
sha1
64f08e11b8c0576f08e4c595ce9da48d1d4c3286
sha256
1c260ad422db0e8d98132c3726c7546c3f8f6fd2e8d503a24a8d118d4ca6cb99
sha512
110fbcac6a05861b6261d154516ad5332b0d0aeef56bc05cb41cb04840c9ec60ec33d1e99ccd323ad9e45b4f3e9008a7c449f39cf2322ff3df1b1c83088ea21b
ripemd-160
9daaa86fb0a95c3c6de6baca50fb2992a40d7aa4
Diameter
42205380
Circumference
132592111.74997
Area
1.3990251153524E+15
Volume
3.9364257748662E+22
Surface area
5.5961004614098E+15
Circumference
132592111.74997
Perimeter
84410760
Area
445323525236100
Diagonal
29843710.400555
Surface area
2671941151416600
Volume
9.3975243027646E+21
Space diagonal
36550931.256376
Perimeter
63308070
Area
1.9283074287865E+14
Altitude
18275465.628188
Surface area
1.9283074287865E+14
Volume
1.1075088601417E+21
Height
9947903.4668517