21373921 is an odd 8-digits composite number following 21373920
and preceding 21373922 . In scientific notation, it is written as 2.1373921 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 21348292 positive integers (up to 21373921) that are relatively prime to 21373921.
21373921 has 4 divisors, whose sum is 21399552
The reverse of 21373921 is 12937312
Previous prime number is 863
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-one million three hundred seventy-three thousand nine hundred twenty-one
Scientific notation
2.1373921 × 10^7
Engineering notation
2.1373921 × 10^6
Prime Factorization
863 × 24767
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21373921
Product of the distinct prime numbers
The prime factorization of 21373921 is 863 × 24767.
Since it has a total of 2 prime factors.
3 , 1 , 82 , 72 , 903 , 965 , 2108 , 2575 , 30916 , 34078 , 871757 , 162469 , 147342 , 7907982 , 11473414 , 87232095 , 143835009 , 16708258 , 6869761256 , 8530463562
n×2
42747842
n×3
64121763
n×4
85495684
n×5
106869605
n÷2
10686960.5
n÷3
7124640.3333333
n÷3
5343480.25
n÷5
4274784.2
n2
456844498914241
n3
9.7645582290776E+21
n4
2.087068961882E+29
n5
4.4608847112819E+36
2 √n
4623.1938094785
3 √n
277.52028529037
4 √n
67.994071870116
5 √n
29.239964429988
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
-21373920
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 21373921 can be divided by 4 positive divisors.
The sum of these divisors (counting 21373921) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001100010001111100001
3
Ternary
1111012220111201
4
Quaternary
1101202033201
5
Quinary
20432431141
6
Senary
2042041201
8
Octal
121421741
10
Decimal
21373921
12
Duodecimal
71a9201
16
Hexadecimal
14623e1
20
Vigesimal
6dbeg1
36
Base36
cq481
md5
869c004b9d4cc0665b3236b19d009cbc
sha1
d27e0fb9ac8edeb48558c9912c461f951a45399f
sha256
f3dc074b8b33b526c5ec5c400cda1ce5aaf6c1263210ff0b1723ac2f140cc8d5
sha512
b230ba178cc3fc29e4d7e58c77f9715133342e0daac7b8af2796e27199a02f720f6ae32c23440107eef3f327b9a2154306d306a4add6d4fbf481354e36f508d2
ripemd-160
6a26b5adc81017a05f6d02e7d88bc4113c7031a9
Diameter
42747842
Circumference
134296306.38402
Area
1.4352193216219E+15
Volume
4.0901685864026E+22
Surface area
5.7408772864876E+15
Circumference
134296306.38402
Perimeter
85495684
Area
456844498914241
Diagonal
30227288.959291
Surface area
2741066993485446
Volume
9.7645582290776E+21
Space diagonal
37020717.128963
Perimeter
64121763
Area
1.9781947081945E+14
Altitude
18510358.564482
Surface area
1.9781947081945E+14
Volume
1.1507642231786E+21
Height
10075762.98643