21031207 is an odd 8-digits composite number following 21031206
and preceding 21031208 . In scientific notation, it is written as 2.1031207 × 10^7.
The sum of its digits is 16. It has a total of 3 prime factors and 8 positive divisors.
There are 20404800 positive integers (up to 21031207) that are relatively prime to 21031207.
21031207 has 8 divisors, whose sum is 21660912
The reverse of 21031207 is 70213012
Previous prime number is 521
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 16
Digital Root 7
Name
twenty-one million thirty-one thousand two hundred seven
Scientific notation
2.1031207 × 10^7
Engineering notation
2.1031207 × 10^6
Prime Factorization
37 × 521 × 1091
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21031207
Product of the distinct prime numbers
The prime factorization of 21031207 is 37 × 521 × 1091.
Since it has a total of 3 prime factors.
6 , 6 , 7 , 52 , 728 , 320 , 2140 , 9087 , 87400 , 57146 , 239628 , 421948 , 7714666 , 1851828 , 20674030 , 2331437 , 626615480 , 292902905 , 10502373 , 9912713248
n×2
42062414
n×3
63093621
n×4
84124828
n×5
105156035
n÷2
10515603.5
n÷3
7010402.3333333
n÷3
5257801.75
n÷5
4206241.4
n2
442311667876849
n3
9.3023482456333E+21
n4
1.9563961154E+29
n5
4.1145371676973E+36
2 √n
4585.9793937609
3 √n
276.02901308811
4 √n
67.719859670269
5 √n
29.145589217265
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
-21031206
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 21031207 can be divided by 8 positive divisors.
The sum of these divisors (counting 21031207) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000001110100100100111
3
Ternary
1110120111101121
4
Quaternary
1100032210213
5
Quinary
20340444312
6
Senary
2030434411
8
Octal
120164447
10
Decimal
21031207
12
Duodecimal
7062a07
16
Hexadecimal
140e927
20
Vigesimal
6b8i07
36
Base36
cirs7
md5
5ba3c2c296b5a10ebfae15c6e9304890
sha1
a2bbbbfdf763078e3c0e7e9e29b79f3961a68469
sha256
58b440b458315e3021e1a62d8e7473977f051bdb65e683b66d9742c11c87ec00
sha512
e672b75ed2e40da6f6c778a3a77df7989944c1ec2e8131d6dcade28d10d0725a899b1a09ad9179dce5b59f0535c257f95194e6f75d1a1f01f33627363e522c3a
ripemd-160
2ac29301ba92c03af56984a93b33c165acaf502a
Diameter
42062414
Circumference
132142970.81465
Area
1.389563086399E+15
Volume
3.896558521282E+22
Surface area
5.5582523455958E+15
Circumference
132142970.81465
Perimeter
84124828
Area
442311667876849
Diagonal
29742618.172476
Surface area
2653870007261094
Volume
9.3023482456333E+21
Space diagonal
36427119.068498
Perimeter
63093621
Area
1.9152657038581E+14
Altitude
18213559.534249
Surface area
1.9152657038581E+14
Volume
1.096292254241E+21
Height
9914206.057492