20251421 is an odd 8-digits composite number following 20251420
and preceding 20251422 . In scientific notation, it is written as 2.0251421 × 10^7.
The sum of its digits is 17. It has a total of 2 prime factors and 4 positive divisors.
There are 20096700 positive integers (up to 20251421) that are relatively prime to 20251421.
20251421 has 4 divisors, whose sum is 20406144
The reverse of 20251421 is 12415202
Previous prime number is 131
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 17
Digital Root 8
Name
twenty million two hundred fifty-one thousand four hundred twenty-one
Scientific notation
2.0251421 × 10^7
Engineering notation
2.0251421 × 10^6
Prime Factorization
131 × 154591
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20251421
Product of the distinct prime numbers
The prime factorization of 20251421 is 131 × 154591.
Since it has a total of 2 prime factors.
2 , 6 , 63 , 27 , 953 , 945 , 2623 , 1690 , 61442 , 88177 , 841911 , 976982 , 3146729 , 3637002 , 32064561 , 73840776 , 646335826 , 578309154 , 1637720428 , 2208062630
n×2
40502842
n×3
60754263
n×4
81005684
n×5
101257105
n÷2
10125710.5
n÷3
6750473.6666667
n÷3
5062855.25
n÷5
4050284.2
n2
410120052519241
n3
8.3055138441093E+21
n4
1.6819845747838E+29
n5
3.4062577739454E+36
2 √n
4500.1578861191
3 √n
272.57446440128
4 √n
67.083216128322
5 √n
28.926181069439
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20251420
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20251421 can be divided by 4 positive divisors.
The sum of these divisors (counting 20251421) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001101010000001100011101
3
Ternary
1102002212201122
4
Quaternary
1031100030131
5
Quinary
20141021141
6
Senary
2002020325
8
Octal
115201435
10
Decimal
20251421
12
Duodecimal
69476a5
16
Hexadecimal
135031d
20
Vigesimal
66b8b1
36
Base36
c223h
md5
1514917ce69807ff97530253239ceb78
sha1
ccceed07b2f85ac19c7ce23a7c0b9776ce6614c0
sha256
75098270160951be1bd18d8756c3083d1d8779cbce80e72f0edc9e86e5d80333
sha512
2c1545dad29b4b1cc2a4e94d2820e19c81ea818cf9b0cfce3655c077ee16abfa3fe0e35f8013e190d87ef6ae2e3135c76b5285392ae07dc12f75c80f24d5ac76
ripemd-160
438939c85c4085ff0828742f2b2b0277c26a3be3
Diameter
40502842
Circumference
127243430.87671
Area
1.2884301440843E+15
Volume
3.4790055035923E+22
Surface area
5.1537205763372E+15
Circumference
127243430.87671
Perimeter
81005684
Area
410120052519241
Diagonal
28639834.235527
Surface area
2460720315115446
Volume
8.3055138441093E+21
Space diagonal
35076490.097467
Perimeter
60754263
Area
1.7758719204154E+14
Altitude
17538245.048734
Surface area
1.7758719204154E+14
Volume
9.788141934014E+20
Height
9546611.4118424