20180181 is an odd 8-digits composite number following 20180180
and preceding 20180182 . In scientific notation, it is written as 2.0180181 × 10^7.
The sum of its digits is 21. It has a total of 3 prime factors and 8 positive divisors.
There are 11531520 positive integers (up to 20180181) that are relatively prime to 20180181.
20180181 has 8 divisors, whose sum is 30750784
The reverse of 20180181 is 18108102
Previous prime number is 7
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 21
Digital Root 3
Name
twenty million one hundred eighty thousand one hundred eighty-one
Scientific notation
2.0180181 × 10^7
Engineering notation
2.0180181 × 10^6
Prime Factorization
3 × 7 × 960961
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20180181
Product of the distinct prime numbers
The prime factorization of 20180181 is 3 × 7 × 960961.
Since it has a total of 3 prime factors.
10 , 3 , 61 , 76 , 672 , 172 , 7530 , 6460 , 78602 , 19242 , 296267 , 945757 , 3196395 , 6127844 , 58207857 , 80767021 , 617302646 , 454472884 , 8923390929 , 9748142268
n×2
40360362
n×3
60540543
n×4
80720724
n×5
100900905
n÷2
10090090.5
n÷3
6726727
n÷3
5045045.25
n÷5
4036036.2
n2
407239705192761
n3
8.2181709611766E+21
n4
1.6584417748549E+29
n5
3.3467655194533E+36
2 √n
4492.2356349595
3 √n
272.25447008103
4 √n
67.02414217996
5 √n
28.905801196736
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
-20180180
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 20180181 can be divided by 8 positive divisors.
The sum of these divisors (counting 20180181) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001100111110110011010101
3
Ternary
1101222021000010
4
Quaternary
1030332303111
5
Quinary
20131231211
6
Senary
2000310433
8
Octal
114766325
10
Decimal
20180181
12
Duodecimal
6912419
16
Hexadecimal
133ecd5
20
Vigesimal
662a91
36
Base36
c0j4l
md5
dc709370126a632d1ea270691a05ab3a
sha1
63d0f2285378018001d90a06709bad715fea3ac2
sha256
7dd0d0610f271da3b5850f7d0b36d2fcb7c6ef75a751c50e63803bd7b89e5a90
sha512
e289aad5de112860cfa3ef7ebf609f2a38d402bae824a4cb0038c9357e1e69dd41b9d6dce19892ad0198a1d5fd741b43aa48e441e12cfe9669224123bd0e4476
ripemd-160
96cbe2867b6bc56608a191240418830846556f29
Diameter
40360362
Circumference
126795816.75542
Area
1.2793812660837E+15
Volume
3.4424194023436E+22
Surface area
5.1175250643346E+15
Circumference
126795816.75542
Perimeter
80720724
Area
407239705192761
Diagonal
28539085.661344
Surface area
2443438231156566
Volume
8.2181709611766E+21
Space diagonal
34953098.797936
Perimeter
60540543
Area
1.7633996506331E+14
Altitude
17476549.398968
Surface area
1.7633996506331E+14
Volume
9.6852073593305E+20
Height
9513028.5537813