20120745 is an odd 8-digits composite number following 20120744
and preceding 20120746 . In scientific notation, it is written as 2.0120745 × 10^7.
The sum of its digits is 21. It has a total of 3 prime factors and 8 positive divisors.
There are 10264320 positive integers (up to 20120745) that are relatively prime to 20120745.
20120745 has 8 divisors, whose sum is 22395648
The reverse of 20120745 is 54702102
Previous prime number is 23
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty million one hundred twenty thousand seven hundred forty-five
Scientific notation
2.0120745 × 10^7
Engineering notation
2.0120745 × 10^6
Prime Factorization
15 × 23 × 58321
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20120745
Product of the distinct prime numbers
The prime factorization of 20120745 is 15 × 23 × 58321.
Since it has a total of 3 prime factors.
7 , 2 , 39 , 33 , 522 , 273 , 2172 , 3024 , 28375 , 59678 , 722518 , 879612 , 615403 , 5657000 , 69936935 , 62672219 , 710333575 , 555310799 , 8350386350 , 8757209158
n×2
40241490
n×3
60362235
n×4
80482980
n×5
100603725
n÷2
10060372.5
n÷3
6706915
n÷3
5030186.25
n÷5
4024149
n2
404844379355025
n3
8.1457705216857E+21
n4
1.6389897149536E+29
n5
3.2977694112203E+36
2 √n
4485.6153424029
3 √n
271.98691996646
4 √n
66.974736598234
5 √n
28.888754047118
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
-20120744
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 20120745 can be divided by 8 positive divisors.
The sum of these divisors (counting 20120745) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100110000010010101001
3
Ternary
1101212020110210
4
Quaternary
1030300102221
5
Quinary
20122330440
6
Senary
1555131333
8
Octal
114602251
10
Decimal
20120745
12
Duodecimal
68a3b49
16
Hexadecimal
13304a9
20
Vigesimal
65f1h5
36
Base36
bz99l
md5
3b601a75097c26378932376ccf015cc2
sha1
5ce129c4cf4467473f9671ab4d8b712811a8204a
sha256
4288afe1f704c1735734fe57732309a1a5b65d9c1a87779a3d91a8502bfeccb8
sha512
9f709fd0e6cc261f072b75fa98195c0851bd63bf6411336e312257e348dba9c645da928501e1b666da5e9ff385ec241ae7816cae8f3c49ee578ab55fc07291d5
ripemd-160
79e69e9fc44fb102e41a689814e1519390255de3
Diameter
40241490
Circumference
126422369.35351
Area
1.2718561280289E+15
Volume
3.4120923771675E+22
Surface area
5.0874245121155E+15
Circumference
126422369.35351
Perimeter
80482980
Area
404844379355025
Diagonal
28455030.464051
Surface area
2429066276130150
Volume
8.1457705216857E+21
Space diagonal
34850152.626137
Perimeter
60362235
Area
1.753027585504E+14
Altitude
17425076.313069
Surface area
1.753027585504E+14
Volume
9.5998826231224E+20
Height
9485010.1546835