20015861 is an odd 8-digits composite number following 20015860
and preceding 20015862 . In scientific notation, it is written as 2.0015861 × 10^7.
The sum of its digits is 23. It has a total of 2 prime factors and 4 positive divisors.
There are 19871724 positive integers (up to 20015861) that are relatively prime to 20015861.
20015861 has 4 divisors, whose sum is 20160000
The reverse of 20015861 is 16851002
Previous prime number is 139
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty million fifteen thousand eight hundred sixty-one
Scientific notation
2.0015861 × 10^7
Engineering notation
2.0015861 × 10^6
Prime Factorization
139 × 143999
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20015861
Product of the distinct prime numbers
The prime factorization of 20015861 is 139 × 143999.
Since it has a total of 2 prime factors.
4 , 5 , 3 , 41 , 585 , 996 , 9873 , 9044 , 59424 , 7805 , 354596 , 196769 , 1726015 , 783018 , 7813094 , 77262583 , 96113721 , 17425487 , 6483487273 , 4264315388
n×2
40031722
n×3
60047583
n×4
80063444
n×5
100079305
n÷2
10007930.5
n÷3
6671953.6666667
n÷3
5003965.25
n÷5
4003172.2
n2
400634691571321
n3
8.0190482982694E+21
n4
1.6050815609045E+29
n5
3.2127089416727E+36
2 √n
4473.9089172669
3 √n
271.51349832894
4 √n
66.887285168908
5 √n
28.858573199709
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
-20015860
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 20015861 can be divided by 4 positive divisors.
The sum of these divisors (counting 20015861) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100010110101011110101
3
Ternary
1101122220121012
4
Quaternary
1030112223311
5
Quinary
20111001421
6
Senary
1553002005
8
Octal
114265365
10
Decimal
20015861
12
Duodecimal
6853305
16
Hexadecimal
1316af5
20
Vigesimal
651jd1
36
Base36
bx0c5
md5
b9cca5b1fcbd676abd964dc822e49c3c
sha1
9df1b3f16f715d4cc41915a8ad622e970936a2a6
sha256
9dbb8c81e94da7ed1289c9bfeaae1e057388d3f3b0f3602e484ef48d5ffc1c02
sha512
e1d4e607ef28aba4525ea32198f0213fcbc711a6301ff1dfa9b904b8b061f66d69977307fd70667a3bbb5e93ba5ac769d2201883e08cd64e91c98f82636033a5
ripemd-160
8b56f09156bb9aa7fd06e061ff057621a1817086
Diameter
40031722
Circumference
125763363.74575
Area
1.2586310038137E+15
Volume
3.35901109635E+22
Surface area
5.0345240152547E+15
Circumference
125763363.74575
Perimeter
80063444
Area
400634691571321
Diagonal
28306702.088775
Surface area
2403808149427926
Volume
8.0190482982694E+21
Space diagonal
34668488.209236
Perimeter
60047583
Area
1.7347991026905E+14
Altitude
17334244.104618
Surface area
1.7347991026905E+14
Volume
9.4505390506146E+20
Height
9435567.3629249