21158085 is an odd 8-digits composite number following 21158084
and preceding 21158086 . In scientific notation, it is written as 2.1158085 × 10^7.
The sum of its digits is 30. It has a total of 3 prime factors and 8 positive divisors.
There are 10416192 positive integers (up to 21158085) that are relatively prime to 21158085.
21158085 has 8 divisors, whose sum is 24304896
The reverse of 21158085 is 58085112
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty-one million one hundred fifty-eight thousand eighty-five
Scientific notation
2.1158085 × 10^7
Engineering notation
2.1158085 × 10^6
Prime Factorization
15 × 13 × 108503
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21158085
Product of the distinct prime numbers
The prime factorization of 21158085 is 15 × 13 × 108503.
Since it has a total of 3 prime factors.
6 , 6 , 78 , 90 , 763 , 781 , 8820 , 1164 , 48146 , 22231 , 270114 , 203451 , 3581820 , 4278459 , 85493744 , 55366421 , 62155718 , 911943549 , 5371077203 , 3245229399
n×2
42316170
n×3
63474255
n×4
84632340
n×5
105790425
n÷2
10579042.5
n÷3
7052695
n÷3
5289521.25
n÷5
4231617
n2
447664560867225
n3
9.4717248303164E+21
n4
2.0040355905645E+29
n5
4.2401555368188E+36
2 √n
4599.7918431164
3 √n
276.58298060848
4 √n
67.821765260987
5 √n
29.180670823466
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
-21158084
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 21158085 can be divided by 8 positive divisors.
The sum of these divisors (counting 21158085) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000101101100011000101
3
Ternary
1110210221102210
4
Quaternary
1100231203011
5
Quinary
20404024320
6
Senary
2033254033
8
Octal
120554305
10
Decimal
21158085
12
Duodecimal
7104319
16
Hexadecimal
142d8c5
20
Vigesimal
6c4f45
36
Base36
clhol
md5
671f701cb9f48d3ea2e94013bcfa660e
sha1
5fcd7e7f39c97f1ee6c4626d74980ecb192f8c39
sha256
6da19a77301c96d5e7485d9ec8586e44eabec81117fd2d236b2f9df979ad471d
sha512
e6d7184e1e44eeaa1097154080e9018a59152c3aafe99ac3165413b5951f0d765bee1efea32d754290a23d3677f007200cdf6bbb226649ecb2dc51f87a45c557
ripemd-160
b65c60dd4236e1ad46969929ecc5a3979f46a014
Diameter
42316170
Circumference
132940168.80006
Area
1.406379695693E+15
Volume
3.9675068191661E+22
Surface area
5.6255187827719E+15
Circumference
132940168.80006
Perimeter
84632340
Area
447664560867225
Diagonal
29922050.760843
Surface area
2685987365203350
Volume
9.4717248303164E+21
Space diagonal
36646878.210861
Perimeter
63474255
Area
1.9384444104251E+14
Altitude
18323439.10543
Surface area
1.9384444104251E+14
Volume
1.116253476175E+21
Height
9974016.9202809