20349987 is an odd 8-digits composite number following 20349986
and preceding 20349988 . In scientific notation, it is written as 2.0349987 × 10^7.
The sum of its digits is 42. It has a total of 3 prime factors and 8 positive divisors.
There are 11575872 positive integers (up to 20349987) that are relatively prime to 20349987.
20349987 has 8 divisors, whose sum is 21415680
The reverse of 20349987 is 78994302
Previous prime number is 233
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 42
Digital Root 6
Name
twenty million three hundred forty-nine thousand nine hundred eighty-seven
Scientific notation
2.0349987 × 10^7
Engineering notation
2.0349987 × 10^6
Prime Factorization
21 × 233 × 4159
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20349987
Product of the distinct prime numbers
The prime factorization of 20349987 is 21 × 233 × 4159.
Since it has a total of 3 prime factors.
9 , 2 , 15 , 77 , 571 , 556 , 6210 , 3655 , 92941 , 4227 , 143676 , 951687 , 9547337 , 7494758 , 13024149 , 16675396 , 140565853 , 50106225 , 6888772911 , 1799792620
n×2
40699974
n×3
61049961
n×4
81399948
n×5
101749935
n÷2
10174993.5
n÷3
6783329
n÷3
5087496.75
n÷5
4069997.4
n2
414121970900169
n3
8.4273767242328E+21
n4
1.7149700678224E+29
n5
3.4899618585575E+36
2 √n
4511.0959865647
3 √n
273.01596600528
4 √n
67.16469300581
5 √n
28.954283822239
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
-20349986
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 20349987 can be divided by 8 positive divisors.
The sum of these divisors (counting 20349987) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001101101000010000100011
3
Ternary
1102021212221020
4
Quaternary
1031220100203
5
Quinary
20202144422
6
Senary
2004100523
8
Octal
115502043
10
Decimal
20349987
12
Duodecimal
6994743
16
Hexadecimal
1368423
20
Vigesimal
673ej7
36
Base36
c465f
md5
f8068dc86e1a8bfa2b27fc84e9c867f0
sha1
86108daf6fa35afa05c3afe32ab3bb1365106fb6
sha256
241c12dc0f3e7ceb43c5b81533fe46330ee778c2f45d0cd97f7b4f9386cf2516
sha512
d955f0856f1968241cd2d5f1198116cab2b59c76b059a5a5187aa8142a34db3f4a9b1efe450f4379875059087db765ec15f7243ef6c7a88311503937a856f1e0
ripemd-160
7b056ae2b2faa4b9c490cd559ebbe621d9842012
Diameter
40699974
Circumference
127862739.3197
Area
1.3010025414701E+15
Volume
3.5300513074511E+22
Surface area
5.2040101658804E+15
Circumference
127862739.3197
Perimeter
81399948
Area
414121970900169
Diagonal
28779227.609516
Surface area
2484731825401014
Volume
8.4273767242328E+21
Space diagonal
35247211.417366
Perimeter
61049961
Area
1.7932007353241E+14
Altitude
17623605.708683
Surface area
1.7932007353241E+14
Volume
9.9317587155312E+20
Height
9593075.8698387