21109957 is an odd 8-digits composite number following 21109956
and preceding 21109958 . In scientific notation, it is written as 2.1109957 × 10^7.
The sum of its digits is 34. It has a total of 3 prime factors and 8 positive divisors.
There are 18722400 positive integers (up to 21109957) that are relatively prime to 21109957.
21109957 has 8 divisors, whose sum is 23591232
The reverse of 21109957 is 75990112
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty-one million one hundred nine thousand nine hundred fifty-seven
Scientific notation
2.1109957 × 10^7
Engineering notation
2.1109957 × 10^6
Prime Factorization
41 × 11 × 46807
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21109957
Product of the distinct prime numbers
The prime factorization of 21109957 is 41 × 11 × 46807.
Since it has a total of 3 prime factors.
8 , 3 , 99 , 80 , 290 , 65 , 3135 , 5649 , 43859 , 33066 , 73402 , 698476 , 4797552 , 8193543 , 33482376 , 27108309 , 556144806 , 694784818 , 8088629166 , 5355082588
n×2
42219914
n×3
63329871
n×4
84439828
n×5
105549785
n÷2
10554978.5
n÷3
7036652.3333333
n÷3
5277489.25
n÷5
4221991.4
n2
445630284541849
n3
9.4072361445762E+21
n4
1.9858635050085E+29
n5
4.1921493198599E+36
2 √n
4594.5573236167
3 √n
276.37310825095
4 √n
67.783164013026
5 √n
29.167383355281
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
-21109956
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 21109957 can be divided by 8 positive divisors.
The sum of these divisors (counting 21109957) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000100001110011000101
3
Ternary
1110201111102021
4
Quaternary
1100201303011
5
Quinary
20401004312
6
Senary
2032243141
8
Octal
120416305
10
Decimal
21109957
12
Duodecimal
70a04b1
16
Hexadecimal
1421cc5
20
Vigesimal
6biehh
36
Base36
ckgjp
md5
804b88198d49db7e5cdef2e9843e4203
sha1
1578beddff2da941f3dd52ffa6a2dd6d27c4deb6
sha256
4c54c2103125b33526c62f7e8f2a459f5c69dca8dd412e29a7c303dee46e4b1f
sha512
a551f4e8dc4189619a3678502d3107a576766ac189237909a8d897db9e99b516cd5cfb76ca3f9cbb745b394c5173eeae45dc14310f961c39a133f56101b1c106
ripemd-160
13cb0e2798af88f25084bb812b6b5e19f8bade4b
Diameter
42219914
Circumference
132637771.65759
Area
1.3999888281338E+15
Volume
3.9404938616513E+22
Surface area
5.5999553125352E+15
Circumference
132637771.65759
Perimeter
84439828
Area
445630284541849
Diagonal
29853987.490513
Surface area
2673781707251094
Volume
9.4072361445762E+21
Space diagonal
36563518.069594
Perimeter
63329871
Area
1.9296357355446E+14
Altitude
18281759.034797
Surface area
1.9296357355446E+14
Volume
1.1086534116755E+21
Height
9951329.1635043