20157212 is an even 8-digits composite number following 20157211
and preceding 20157213 . In scientific notation, it is written as 2.0157212 × 10^7.
The sum of its digits is 20. It has a total of 3 prime factors and 6 positive divisors.
There are 10078604 positive integers (up to 20157212) that are relatively prime to 20157212.
20157212 has 6 divisors, whose sum is 35275128
The reverse of 20157212 is 21275102
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 20
Digital Root 2
Name
twenty million one hundred fifty-seven thousand two hundred twelve
Scientific notation
2.0157212 × 10^7
Engineering notation
2.0157212 × 10^6
Prime Factorization
2 × 2 × 5039303
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
10078606
Product of the distinct prime numbers
The prime factorization of 20157212 is 2 × 2 × 5039303.
Since it has a total of 3 prime factors.
3 , 8 , 11 , 49 , 319 , 570 , 4849 , 4423 , 93052 , 82955 , 972061 , 988329 , 2363476 , 7215891 , 40332019 , 28345435 , 706035167 , 126109628 , 8016886334 , 5759947275
n×2
40314424
n×3
60471636
n×4
80628848
n×5
100786060
n÷2
10078606
n÷3
6719070.6666667
n÷3
5039303
n÷5
4031442.4
n2
406313195612944
n3
8.1901412223676E+21
n4
1.650904129292E+29
n5
3.3277624525815E+36
2 √n
4489.678384918
3 √n
272.15113788988
4 √n
67.005062382763
5 √n
28.899218105825
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
-20157211
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 20157212 can be divided by 6 positive divisors.
The sum of these divisors (counting 20157212) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1001100111001001100011100
3
Ternary
1101221002111102
4
Quaternary
1030321030130
5
Quinary
20130012322
6
Senary
2000012232
8
Octal
114711434
10
Decimal
20157212
12
Duodecimal
6901078
16
Hexadecimal
133931c
20
Vigesimal
65jd0c
36
Base36
c01ek
md5
14c7a33c57055deed17e6c6b85c104bb
sha1
8d83a51f3b24712598692c28751856552d4c47ed
sha256
63f2d73427c9f5d0e4bb86e6cee05c5209407eeccf69d7bb560bcf4f80577852
sha512
0e57718b18f61b2fc3866a320734d331c21e21adcf8de945d2d6da821e52a0de1d6d8702e74928a8ce801d9cfcf136c5d379c6244c4bd55bd3d7430df8ee0b66
ripemd-160
56ae7ed34942a37909723cbcb3f8099f88e059e3
Diameter
40314424
Circumference
126651498.2721
Area
1.2764705503942E+15
Volume
3.4306783328071E+22
Surface area
5.1058822015769E+15
Circumference
126651498.2721
Perimeter
80628848
Area
406313195612944
Diagonal
28506602.59003
Surface area
2437879173677664
Volume
8.1901412223676E+21
Space diagonal
34913315.322937
Perimeter
60471636
Area
1.7593877464682E+14
Altitude
17456657.661469
Surface area
1.7593877464682E+14
Volume
9.6521739953527E+20
Height
9502200.8633432