21031517 is an odd 8-digits composite number following 21031516
and preceding 21031518 . In scientific notation, it is written as 2.1031517 × 10^7.
The sum of its digits is 20. It has a total of 2 prime factors and 4 positive divisors.
There are 19413696 positive integers (up to 21031517) that are relatively prime to 21031517.
21031517 has 4 divisors, whose sum is 22649340
The reverse of 21031517 is 71513012
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 20
Digital Root 2
Name
twenty-one million thirty-one thousand five hundred seventeen
Scientific notation
2.1031517 × 10^7
Engineering notation
2.1031517 × 10^6
Prime Factorization
13 × 1617809
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21031517
Product of the distinct prime numbers
The prime factorization of 21031517 is 13 × 1617809.
Since it has a total of 2 prime factors.
6 , 7 , 55 , 30 , 352 , 460 , 9236 , 1535 , 83884 , 8753 , 449358 , 650413 , 3070819 , 3742358 , 48670947 , 46262822 , 328691405 , 816534304 , 4023653242 , 9602666941
n×2
42063034
n×3
63094551
n×4
84126068
n×5
105157585
n÷2
10515758.5
n÷3
7010505.6666667
n÷3
5257879.25
n÷5
4206303.4
n2
442324707321289
n3
9.3027596015477E+21
n4
1.9565114670686E+29
n5
4.1148404180349E+36
2 √n
4586.0131923055
3 √n
276.03036930403
4 √n
67.72010921658
5 √n
29.145675137958
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
-21031516
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 21031517 can be divided by 4 positive divisors.
The sum of these divisors (counting 21031517) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010000001110101001011101
3
Ternary
1110120111211002
4
Quaternary
1100032221131
5
Quinary
20341002032
6
Senary
2030440045
8
Octal
120165135
10
Decimal
21031517
12
Duodecimal
7063025
16
Hexadecimal
140ea5d
20
Vigesimal
6b8ifh
36
Base36
cis0t
md5
e9cf70df75a5e4b04fafe2e1bdb3f44e
sha1
2473765e29b6944b6587c0d354713f76058ff0b8
sha256
99c4e7ce10fb5c7b7eff07da1c9e4e1d8c81ac2ffb067c9b4b5468ddade265ac
sha512
0f0181d147930323fd5eb2f41089e1e0cb2ab35b335ac4ffccb3681776a25c4bcb94da1e2f8af5f5bc21b6c167d4bf62589d991dbf960595cc5c3ddab908a09e
ripemd-160
fb63dd6f3021540c446ab5eaae06da6fbe9ba3be
Diameter
42063034
Circumference
132144918.6021
Area
1.3896040510218E+15
Volume
3.8967308296446E+22
Surface area
5.5584162040873E+15
Circumference
132144918.6021
Perimeter
84126068
Area
442324707321289
Diagonal
29743056.57868
Surface area
2653948243927734
Volume
9.3027596015477E+21
Space diagonal
36427656.004249
Perimeter
63094551
Area
1.9153221663088E+14
Altitude
18213828.002124
Surface area
1.9153221663088E+14
Volume
1.0963407330004E+21
Height
9914352.1928934