21123397 is an odd 8-digits composite number following 21123396
and preceding 21123398 . In scientific notation, it is written as 2.1123397 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 20394192 positive integers (up to 21123397) that are relatively prime to 21123397.
21123397 has 4 divisors, whose sum is 21149356
The reverse of 21123397 is 79332112
Previous prime number is 841
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-one million one hundred twenty-three thousand three hundred ninety-seven
Scientific notation
2.1123397 × 10^7
Engineering notation
2.1123397 × 10^6
Prime Factorization
841 × 25117
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21123397
Product of the distinct prime numbers
The prime factorization of 21123397 is 841 × 25117.
Since it has a total of 2 prime factors.
8 , 6 , 21 , 10 , 196 , 249 , 9524 , 8108 , 6407 , 16066 , 274176 , 798779 , 5552229 , 1731984 , 2778789 , 86429723 , 586184201 , 475860454 , 6527983535 , 4858589204
n×2
42246794
n×3
63370191
n×4
84493588
n×5
105616985
n÷2
10561698.5
n÷3
7041132.3333333
n÷3
5280849.25
n÷5
4224679.4
n2
446197900819609
n3
9.4252153995792E+21
n4
1.9909256669583E+29
n5
4.2055113260649E+36
2 √n
4596.0196909935
3 √n
276.43174829719
4 √n
67.793950253644
5 √n
29.171096388317
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21123396
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21123397 can be divided by 4 positive divisors.
The sum of these divisors (counting 21123397) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000100101000101000101
3
Ternary
1110202011212001
4
Quaternary
1100211011011
5
Quinary
20401422042
6
Senary
2032425301
8
Octal
120450505
10
Decimal
21123397
12
Duodecimal
70a8231
16
Hexadecimal
1425145
20
Vigesimal
6c089h
36
Base36
ckqx1
md5
2b555dcd98cd44797f2ed5a94dcfeef8
sha1
6a2453eaba72735c78afc06deaa0b0e9f6699811
sha256
cb3d6bf891968a7391633d9256a3f26864fc594c1780970baf2a976850faab72
sha512
e0e3aa8afd007e897bfb64b55c6a9e51201b49059884c031e7555745873469eccce2af822553f5fb8cc8108cc89e9b95ee377337a9d5deec5afeedaede7ef050
ripemd-160
6fe438bedf0b2681497f6d0039f4b653a7b1a44d
Diameter
42246794
Circumference
132722217.66812
Area
1.4017720472621E+15
Volume
3.9480249943759E+22
Surface area
5.6070881890483E+15
Circumference
132722217.66812
Perimeter
84493588
Area
446197900819609
Diagonal
29872994.520791
Surface area
2677187404917654
Volume
9.4252153995792E+21
Space diagonal
36586796.832448
Perimeter
63370191
Area
1.9320935861254E+14
Altitude
18293398.416224
Surface area
1.9320935861254E+14
Volume
1.1107722871977E+21
Height
9957664.8402637