20002561 is an odd 8-digits composite number following 20002560
and preceding 20002562 . In scientific notation, it is written as 2.0002561 × 10^7.
The sum of its digits is 16. It has a total of 2 prime factors and 4 positive divisors.
There are 19960324 positive integers (up to 20002561) that are relatively prime to 20002561.
20002561 has 4 divisors, whose sum is 20044800
The reverse of 20002561 is 16520002
Previous prime number is 479
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 16
Digital Root 7
Name
twenty million two thousand five hundred sixty-one
Scientific notation
2.0002561 × 10^7
Engineering notation
2.0002561 × 10^6
Prime Factorization
479 × 41759
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20002561
Product of the distinct prime numbers
The prime factorization of 20002561 is 479 × 41759.
Since it has a total of 2 prime factors.
4 , 8 , 81 , 36 , 228 , 415 , 1144 , 5003 , 3224 , 32311 , 480878 , 646923 , 1457705 , 1835013 , 55838464 , 80300855 , 850714701 , 490233126 , 4402409372 , 7363275726
n×2
40005122
n×3
60007683
n×4
80010244
n×5
100012805
n÷2
10001280.5
n÷3
6667520.3333333
n÷3
5000640.25
n÷5
4000512.2
n2
400102446558721
n3
8.0030735935401E+21
n4
1.6008196774227E+29
n5
3.2020493247649E+36
2 √n
4472.4222743386
3 √n
271.45334720419
4 √n
66.876171199752
5 √n
28.85473703119
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
-20002560
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 20002561 can be divided by 4 positive divisors.
The sum of these divisors (counting 20002561) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100010011011100000001
3
Ternary
1101122020100121
4
Quaternary
1030103130001
5
Quinary
20110040221
6
Senary
1552420241
8
Octal
114233401
10
Decimal
20002561
12
Duodecimal
6847681
16
Hexadecimal
1313701
20
Vigesimal
650681
36
Base36
bwq2p
md5
e46390328c62aa52ab45d62d2da5a43f
sha1
5ea102340b9d03a8c45d011e02c195f1c26a6ea1
sha256
9340efda2002cbc353df50973fd6b720d6273771af2b2720dbfab41c667cca56
sha512
1689d1a1a26da783f51e67837dda1a758c14538531bb3949bc9a04986714e21c7c1ccc422df1a0b558bb095b298e4b20ddec5f9207b73a6f5a4a369e5f741867
ripemd-160
247fa177e458fefb4f15e7deec72b092a620ff56
Diameter
40005122
Circumference
125679797.38116
Area
1.2569589067922E+15
Volume
3.3523196276805E+22
Surface area
5.0278356271687E+15
Circumference
125679797.38116
Perimeter
80010244
Area
400102446558721
Diagonal
28287893.048395
Surface area
2400614679352326
Volume
8.0030735935401E+21
Space diagonal
34645451.933496
Perimeter
60007683
Area
1.7324944141808E+14
Altitude
17322725.966748
Surface area
1.7324944141808E+14
Volume
9.4317126805453E+20
Height
9429297.6827984