20180861 is an odd 8-digits prime number following 20180860
and preceding 20180862 . In scientific notation, it is written as 2.0180861 × 10^7.
The sum of its digits is 26. It has a total of 1 prime factors and 2 positive divisors.
There are 20180860 positive integers (up to 20180861) that are relatively prime to 20180861.
20180861 has 2 divisors, whose sum is 20180862
The reverse of 20180861 is 16808102
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty million one hundred eighty thousand eight hundred sixty-one
Scientific notation
2.0180861 × 10^7
Engineering notation
2.0180861 × 10^6
Prime Factorization
20180861
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20180861
Product of the distinct prime numbers
The prime factorization of 20180861 is 20180861.
Since it has a total of 1 prime factors.
8 , 8 , 64 , 52 , 797 , 654 , 2292 , 7608 , 49777 , 66581 , 127539 , 666399 , 6681474 , 9010035 , 85002969 , 73812663 , 216103316 , 437161129 , 7867477898 , 9629094022
n×2
40361722
n×3
60542583
n×4
80723444
n×5
100904305
n÷2
10090430.5
n÷3
6726953.6666667
n÷3
5045215.25
n÷5
4036172.2
n2
407267150701321
n3
8.2190017581694E+21
n4
1.6586653204037E+29
n5
3.3473294276588E+36
2 √n
4492.3113204674
3 √n
272.25752804766
4 √n
67.024706791358
5 √n
28.905995998556
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20180862
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10090431
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4492.3114317687
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999008962
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20180861 can be divided by 2 positive divisors.
The sum of these divisors (counting 20180861) is 20180862, the average is 10090431.
Base
System
Value
2
Binary
1001100111110111101111101
3
Ternary
1101222021221022
4
Quaternary
1030332331331
5
Quinary
20131241421
6
Senary
2000313525
8
Octal
114767575
10
Decimal
20180861
12
Duodecimal
69128a5
16
Hexadecimal
133ef7d
20
Vigesimal
662c31
36
Base36
c0jnh
md5
5cafcdbfdf25efcd7d4c638c4ee40699
sha1
00a49a98bd7805dece2388827085ea0ece292095
sha256
0972bc41905863ebcefb0a17ef78b95507efc9c1f40e6b1d6489ec2709121b74
sha512
a9d45e1687dfd600e9192a558529f0f38e7875e8cb484917d7d316feb642ea814a8642734a3b799024c387ef2e53de3586d6603c7da895bd89826490b4646a20
ripemd-160
7fe6e39c0b972d065e70cf58c68352baa87cf6f8
Diameter
40361722
Circumference
126800089.32143
Area
1.2794674886917E+15
Volume
3.4427674057742E+22
Surface area
5.1178699547669E+15
Circumference
126800089.32143
Perimeter
80723444
Area
407267150701321
Diagonal
28540047.326566
Surface area
2443602904207926
Volume
8.2190017581694E+21
Space diagonal
34954276.592485
Perimeter
60542583
Area
1.7635184931712E+14
Altitude
17477138.296243
Surface area
1.7635184931712E+14
Volume
9.6861864629762E+20
Height
9513349.1088554