20051221 is an odd 8-digits prime number following 20051220
and preceding 20051222 . In scientific notation, it is written as 2.0051221 × 10^7.
The sum of its digits is 13. It has a total of 1 prime factors and 2 positive divisors.
There are 20051220 positive integers (up to 20051221) that are relatively prime to 20051221.
20051221 has 2 divisors, whose sum is 20051222
The reverse of 20051221 is 12215002
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 13
Digital Root 4
Name
twenty million fifty-one thousand two hundred twenty-one
Scientific notation
2.0051221 × 10^7
Engineering notation
2.0051221 × 10^6
Prime Factorization
20051221
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20051221
Product of the distinct prime numbers
The prime factorization of 20051221 is 20051221.
Since it has a total of 1 prime factors.
9 , 7 , 36 , 35 , 788 , 707 , 7274 , 720 , 33705 , 44684 , 150966 , 65649 , 1479090 , 7391062 , 23227706 , 44294578 , 135334823 , 984338722 , 1842948057 , 3137911685
n×2
40102442
n×3
60153663
n×4
80204884
n×5
100256105
n÷2
10025610.5
n÷3
6683740.3333333
n÷3
5012805.25
n÷5
4010244.2
n2
402051463590841
n3
8.0616227498334E+21
n4
1.6164537937554E+29
n5
3.2411872254877E+36
2 √n
4477.8589750013
3 √n
271.67328942834
4 √n
66.916806371803
5 √n
28.868762307527
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20051222
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10025611
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4477.8590866618
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999002555
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20051221 can be divided by 2 positive divisors.
The sum of these divisors (counting 20051221) is 20051222, the average is 10025611.
Base
System
Value
2
Binary
1001100011111010100010101
3
Ternary
1101201201002211
4
Quaternary
1030133110111
5
Quinary
20113114341
6
Senary
1553433421
8
Octal
114372425
10
Decimal
20051221
12
Duodecimal
686b871
16
Hexadecimal
131f515
20
Vigesimal
656811
36
Base36
bxrmd
md5
9eb18c228038e550d3e7fd91f3ae0b78
sha1
12f7a37926f9138fb5881a81ef81fd53b6a9d359
sha256
1ff2f2818c49da691557169ae4028dc5b2b24462810aa73b0dda7cf7932e1226
sha512
2ac2cfc1cd8c5a8a0ec690fc708133c57c205e6c2bd7e692d85fbd4d45ca78e66e25de18f08461ef821bb779df6fb05b31cc427959a6878da071eb85c90ad7c6
ripemd-160
d04fa412c9994bb39718538f28505efccfdccb76
Diameter
40102442
Circumference
125985537.17821
Area
1.263081924382E+15
Volume
3.3768446409185E+22
Surface area
5.052327697528E+15
Circumference
125985537.17821
Perimeter
80204884
Area
402051463590841
Diagonal
28356708.68034
Surface area
2412308781545046
Volume
8.0616227498334E+21
Space diagonal
34729733.525792
Perimeter
60153663
Area
1.7409339054919E+14
Altitude
17364866.762896
Surface area
1.7409339054919E+14
Volume
9.5007135229582E+20
Height
9452236.2267801