72100021 is an odd 8-digits composite number following 72100020
and preceding 72100022 . In scientific notation, it is written as 7.2100021 × 10^7.
The sum of its digits is 13. It has a total of 3 prime factors and 8 positive divisors.
There are 60483192 positive integers (up to 72100021) that are relatively prime to 72100021.
72100021 has 8 divisors, whose sum is 75139200
The reverse of 72100021 is 12000127
Previous prime number is 47
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 13
Digital Root 4
Name
seventy-two million one hundred thousand twenty-one
Scientific notation
7.2100021 × 10^7
Engineering notation
7.2100021 × 10^6
Prime Factorization
49 × 47 × 31307
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
72100021
Product of the distinct prime numbers
The prime factorization of 72100021 is 49 × 47 × 31307.
Since it has a total of 3 prime factors.
3 , 1 , 54 , 79 , 633 , 29 , 4348 , 6970 , 41293 , 50482 , 606014 , 454040 , 9778702 , 7982829 , 38204857 , 57798668 , 312337120 , 923414060 , 6508804137 , 9103919004
n×2
144200042
n×3
216300063
n×4
288400084
n×5
360500105
n÷2
36050010.5
n÷3
24033340.333333
n÷3
18025005.25
n÷5
14420004.2
n2
5198413028200441
n3
3.7480568849993E+23
n4
2.7023498011764E+31
n5
1.9483947741416E+39
2 √n
8491.1731227199
3 √n
416.20931627494
4 √n
92.14756167539
5 √n
37.289544487262
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
-72100020
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 72100021 can be divided by 8 positive divisors.
The sum of these divisors (counting 72100021) is 1, the average is 0.125.
Base
System
Value
2
Binary
100010011000010100010110101
3
Ternary
12000200001122011
4
Quaternary
10103002202311
5
Quinary
121424200041
6
Senary
11053204221
8
Octal
423024265
10
Decimal
72100021
12
Duodecimal
20190671
16
Hexadecimal
44c28b5
20
Vigesimal
12aca11
36
Base36
16xcqd
md5
44107bf8e8b8cb226f20f028ecfad7db
sha1
58373ddb5d8473b60f3b968dd18046d3e0a4463f
sha256
1712600cbf17f446832f4e66e3673fd49ba0007ae564eeb6e0c66645499580a2
sha512
ef822eac1959a66057ecd2dcf93ebd17e3b06422db3664bc7c80a0c62f79026de259c94496184d2b5c2c5f5a16da4ca4ae8117c840b4d8fa6426e414722885ff
ripemd-160
be0fe854ecfdf55a0a2c105f78c017fb0afb5059
Diameter
144200042
Circumference
453017792.59454
Area
1.633129617972E+16
Volume
1.5699823966867E+24
Surface area
6.532518471888E+16
Circumference
453017792.59454
Perimeter
288400084
Area
5198413028200441
Diagonal
101964827.54558
Surface area
31190478169202646
Volume
3.7480568849993E+23
Space diagonal
124880899.59878
Perimeter
216300063
Area
2.2509788708928E+15
Altitude
62440449.799392
Surface area
2.2509788708928E+15
Volume
4.4171273994265E+22
Height
33988275.848528