66720912 is an even 8-digits composite number following 66720911
and preceding 66720913 . In scientific notation, it is written as 6.6720912 × 10^7.
The sum of its digits is 33. It has a total of 6 prime factors and 20 positive divisors.
There are 22240288 positive integers (up to 66720912) that are relatively prime to 66720912.
66720912 has 20 divisors, whose sum is 172362480
The reverse of 66720912 is 21902766
Previous prime number is 3
Is Prime? no
Number parity even
Number length 8
Sum of Digits 33
Digital Root 6
Name
sixty-six million seven hundred twenty thousand nine hundred twelve
Scientific notation
6.6720912 × 10^7
Engineering notation
6.6720912 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 3 × 1390019
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
8340114
Product of the distinct prime numbers
The prime factorization of 66720912 is 2 × 2 × 2 × 2 × 3 × 1390019.
Since it has a total of 6 prime factors.
10 , 3 , 96 , 88 , 763 , 209 , 9158 , 686 , 69099 , 52210 , 851102 , 93642 , 7029096 , 5692175 , 21419818 , 94354676 , 376238975 , 556328932 , 1189842594 , 4322612414
n×2
133441824
n×3
200162736
n×4
266883648
n×5
333604560
n÷2
33360456
n÷3
22240304
n÷3
16680228
n÷5
13344182.4
n2
4451680098111744
n3
2.9702015607827E+23
n4
1.9817455695924E+31
n5
1.3222387175517E+39
2 √n
8168.2869685143
3 √n
405.59008024788
4 √n
90.378575826986
5 √n
36.715749217372
1 , 2 , 3 , 4 , 6 , 8 , 12 , 16 , 24 , 48 , 1390019 , 2780038 , 4170057 , 5560076 , 8340114 , 11120152 , 16680228 , 22240304 , 33360456 , 66720912
20 divisors
τ
Total Divisors
20
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-66720911
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.05
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
20
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 66720912 can be divided by 20 positive divisors.
The sum of these divisors (counting 66720912) is 1, the average is 0.05.
Base
System
Value
2
Binary
11111110100001010010010000
3
Ternary
11122112202212220
4
Quaternary
3332201102100
5
Quinary
114040032122
6
Senary
10342021040
8
Octal
376412220
10
Decimal
66720912
12
Duodecimal
1a417780
16
Hexadecimal
3fa1490
20
Vigesimal
10h025c
36
Base36
13q26o
md5
fd1986a5773eb7a5059b974a528526fe
sha1
07ae67dc48228288b205bf200b884a145b3fe710
sha256
b51152b4b6954371cbef234cabf40629c929a6e92a4d55452249759c104c3412
sha512
fdec17e9801163913299b1dedec925c5bb6154805067b11c4b42e526f2978d429124454e2c1a529ce51b1ca9fe1fdc5d962d8c2e9d55d1dcf1a039f1af1f679b
ripemd-160
cd468541fdb5b63df4a8a19f292103640f3f6e72
Diameter
133441824
Circumference
419219853.96002
Area
1.398536549236E+16
Volume
1.2441551204048E+24
Surface area
5.5941461969439E+16
Circumference
419219853.96002
Perimeter
266883648
Area
4451680098111744
Diagonal
94357618.644302
Surface area
26710080588670464
Volume
2.9702015607827E+23
Space diagonal
115564009.51133
Perimeter
200162736
Area
1.9276340272432E+15
Altitude
57782004.755666
Surface area
1.9276340272432E+15
Volume
3.5004161085338E+22
Height
31452539.548101