20012981 is an odd 8-digits prime number following 20012980
and preceding 20012982 . In scientific notation, it is written as 2.0012981 × 10^7.
The sum of its digits is 23. It has a total of 1 prime factors and 2 positive divisors.
There are 20012980 positive integers (up to 20012981) that are relatively prime to 20012981.
20012981 has 2 divisors, whose sum is 20012982
The reverse of 20012981 is 18921002
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty million twelve thousand nine hundred eighty-one
Scientific notation
2.0012981 × 10^7
Engineering notation
2.0012981 × 10^6
Prime Factorization
20012981
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
20012981
Product of the distinct prime numbers
The prime factorization of 20012981 is 20012981.
Since it has a total of 1 prime factors.
8 , 5 , 89 , 43 , 653 , 442 , 152 , 8199 , 3228 , 74248 , 230645 , 945935 , 7535486 , 7164090 , 98204349 , 15503851 , 729138981 , 791754560 , 1522171983 , 8748103718
n×2
40025962
n×3
60038943
n×4
80051924
n×5
100064905
n÷2
10006490.5
n÷3
6670993.6666667
n÷3
5003245.25
n÷5
4002596.2
n2
400519408506361
n3
8.015587312569E+21
n4
1.6041579659029E+29
n5
3.2103982892612E+36
2 √n
4473.587039502
3 √n
271.50047538374
4 √n
66.884879004914
5 √n
28.857742683602
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
20012982
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10006491
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4473.5871512691
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999000649
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20012981 can be divided by 2 positive divisors.
The sum of these divisors (counting 20012981) is 20012982, the average is 10006491.
Base
System
Value
2
Binary
1001100010101111110110101
3
Ternary
1101122202122112
4
Quaternary
1030111332311
5
Quinary
20110403411
6
Senary
1552540405
8
Octal
114257665
10
Decimal
20012981
12
Duodecimal
6851705
16
Hexadecimal
1315fb5
20
Vigesimal
651c91
36
Base36
bwy45
md5
8a4ca3666cb8be009718a6b4d5c621dc
sha1
9407e20ba54ee7f7d586416070bd6f5ab631c15e
sha256
e9aab18b29c8e7f2e13d6e5521f0202a449939d6c8f5be925281cca729119b2b
sha512
f44f4f6331ac47114d9863091d9dcf4707c58b37354bd8dfc36aacc4df85f3364b31b4884e9c22f3b6f2b16930b41bb4d496341a4518ea34f2ec0ff9b41cb645
ripemd-160
b188d0d63940686cb05732ebbc46e50edf2be42f
Diameter
40025962
Circumference
125745268.17206
Area
1.2582688313837E+15
Volume
3.3575613620499E+22
Surface area
5.0330753255349E+15
Circumference
125745268.17206
Perimeter
80051924
Area
400519408506361
Diagonal
28302629.153715
Surface area
2403116451038166
Volume
8.015587312569E+21
Space diagonal
34663499.902911
Perimeter
60038943
Area
1.7342999123761E+14
Altitude
17331749.951455
Surface area
1.7342999123761E+14
Volume
9.4464602398507E+20
Height
9434209.717905