20131021 is an odd 8-digits composite number following 20131020
and preceding 20131022 . In scientific notation, it is written as 2.0131021 × 10^7.
The sum of its digits is 10. It has a total of 2 prime factors and 4 positive divisors.
There are 19830492 positive integers (up to 20131021) that are relatively prime to 20131021.
20131021 has 4 divisors, whose sum is 20431552
The reverse of 20131021 is 12013102
Previous prime number is 67
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 10
Digital Root 1
Name
twenty million one hundred thirty-one thousand twenty-one
Scientific notation
2.0131021 × 10^7
Engineering notation
2.0131021 × 10^6
Prime Factorization
67 × 300463
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20131021
Product of the distinct prime numbers
The prime factorization of 20131021 is 67 × 300463.
Since it has a total of 2 prime factors.
7 , 5 , 79 , 31 , 477 , 273 , 5157 , 6004 , 11184 , 51921 , 441795 , 256043 , 6277495 , 3262136 , 34688306 , 26559183 , 303611899 , 867946583 , 2528366669 , 571836743
n×2
40262042
n×3
60393063
n×4
80524084
n×5
100655105
n÷2
10065510.5
n÷3
6710340.3333333
n÷3
5032755.25
n÷5
4026204.2
n2
405258006502441
n3
8.1582574393188E+21
n4
1.6423405183433E+29
n5
3.306199146392E+36
2 √n
4486.7606354696
3 √n
272.03321483803
4 √n
66.9832862397
5 √n
28.891704238182
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
-20131020
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 20131021 can be divided by 4 positive divisors.
The sum of these divisors (counting 20131021) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110010110011001101
3
Ternary
1101212202120101
4
Quaternary
1030302303031
5
Quinary
20123143041
6
Senary
1555251101
8
Octal
114626315
10
Decimal
20131021
12
Duodecimal
68a9a91
16
Hexadecimal
1332ccd
20
Vigesimal
65g7b1
36
Base36
bzh71
md5
fa076421c962bbe8274ed20110b6c061
sha1
90f41c1ed63c7777ab55f189779d0344ef98f96a
sha256
ab93ebda9d8a72993c99e099dd541f663a8c126a4f3176a51bc468d4eafcbef4
sha512
324dc5909ca31acdcd555fcbaca8e4924ba2fb264aaf0621a89ac13e2891593ab4843dc28e0487eb3bbc60ab0915e69d8003076ae0abd2ed0f6e0f5034c42dcf
ripemd-160
6082ed341c9a1ea317fcc8d3d005c2d4f994815f
Diameter
40262042
Circumference
126486935.36572
Area
1.2731555760365E+15
Volume
3.4173228849944E+22
Surface area
5.0926223041461E+15
Circumference
126486935.36572
Perimeter
80524084
Area
405258006502441
Diagonal
28469562.922618
Surface area
2431548039014646
Volume
8.1582574393188E+21
Space diagonal
34867951.180236
Perimeter
60393063
Area
1.7548186435908E+14
Altitude
17433975.590118
Surface area
1.7548186435908E+14
Volume
9.6145985966798E+20
Height
9489854.3075392