21061388 is an even 8-digits composite number following 21061387
and preceding 21061389 . In scientific notation, it is written as 2.1061388 × 10^7.
The sum of its digits is 29. It has a total of 3 prime factors and 6 positive divisors.
There are 10530692 positive integers (up to 21061388) that are relatively prime to 21061388.
21061388 has 6 divisors, whose sum is 36857436
The reverse of 21061388 is 88316012
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty-one million sixty-one thousand three hundred eighty-eight
Scientific notation
2.1061388 × 10^7
Engineering notation
2.1061388 × 10^6
Prime Factorization
2 × 2 × 5265347
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
10530694
Product of the distinct prime numbers
The prime factorization of 21061388 is 2 × 2 × 5265347.
Since it has a total of 3 prime factors.
4 , 4 , 49 , 92 , 39 , 747 , 3530 , 2164 , 72207 , 48056 , 974819 , 4548 , 112450 , 7714989 , 7555978 , 15900353 , 383748346 , 161485534 , 1465242219 , 6528435875
n×2
42122776
n×3
63184164
n×4
84245552
n×5
105306940
n÷2
10530694
n÷3
7020462.6666667
n÷3
5265347
n÷5
4212277.6
n2
443582064486544
n3
9.3424539699921E+21
n4
1.9676504793414E+29
n5
4.1441450193796E+36
2 √n
4589.2687870727
3 √n
276.16098918348
4 √n
67.744142086772
5 √n
29.153949541302
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21061387
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21061388 can be divided by 6 positive divisors.
The sum of these divisors (counting 21061388) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1010000010101111100001100
3
Ternary
1110122000210102
4
Quaternary
1100111330030
5
Quinary
20342431023
6
Senary
2031230232
8
Octal
120257414
10
Decimal
21061388
12
Duodecimal
7078378
16
Hexadecimal
1415f0c
20
Vigesimal
6bcd98
36
Base36
cjf2k
md5
2ba539502beb6e38f6e6804b597c794b
sha1
75b02ebfd40825cce2518cf3d2b7a131cd12b0c7
sha256
c62c8b4aa6213660cf7b27fa3557af0a260b714b4f72ee50fa0f534c87e2e34a
sha512
6b5d5d3342996eed86148a52c9e89e4cfc1542f9293de61ff4ab74c038ad0098fc3e531913cf030fc5238650feda6cdcb12fea75ac1934afe387bd6f188d9c18
ripemd-160
4859eca3f2caa97e48d78fad1f411fe7ead14f50
Diameter
42122776
Circumference
132332603.63041
Area
1.3935541550551E+15
Volume
3.9133579678171E+22
Surface area
5.5742166202205E+15
Circumference
132332603.63041
Perimeter
84245552
Area
443582064486544
Diagonal
29785300.552002
Surface area
2661492386919264
Volume
9.3424539699921E+21
Space diagonal
36479394.093921
Perimeter
63184164
Area
1.9207666825425E+14
Altitude
18239697.046961
Surface area
1.9207666825425E+14
Volume
1.1010187591841E+21
Height
9928433.517334