21086790 is an even 8-digits composite number following 21086789
and preceding 21086791 . In scientific notation, it is written as 2.1086790 × 10^7.
The sum of its digits is 33. It has a total of 3 prime factors and 8 positive divisors.
There are 5623136 positive integers (up to 21086790) that are relatively prime to 21086790.
21086790 has 8 divisors, whose sum is 33738912
The reverse of 21086790 is 09768012
Previous prime number is 15
Is Prime? no
Number parity even
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty-one million eighty-six thousand seven hundred ninety
Scientific notation
2.1086790 × 10^7
Engineering notation
2.1086790 × 10^6
Prime Factorization
2 × 15 × 702893
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21086790
Product of the distinct prime numbers
The prime factorization of 21086790 is 2 × 15 × 702893.
Since it has a total of 3 prime factors.
5 , 8 , 70 , 89 , 839 , 380 , 9627 , 6874 , 76587 , 83720 , 996793 , 601072 , 9459899 , 5812027 , 40553145 , 83544905 , 4355660 , 331793038 , 9472360847 , 6504212398
n×2
42173580
n×3
63260370
n×4
84347160
n×5
105433950
n÷2
10543395
n÷3
7028930
n÷3
5271697.5
n÷5
4217358
n2
444652712504100
n3
9.3762983715043E+21
n4
1.9771603473725E+29
n5
4.1691965041372E+36
2 √n
4592.0354963785
3 √n
276.27196988856
4 √n
67.764559294505
5 √n
29.160978627957
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
-21086789
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 21086790 can be divided by 8 positive divisors.
The sum of these divisors (counting 21086790) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000011100001001000110
3
Ternary
1110200022122020
4
Quaternary
1100130021012
5
Quinary
20344234130
6
Senary
2031544010
8
Octal
120341106
10
Decimal
21086790
12
Duodecimal
708b006
16
Hexadecimal
141c246
20
Vigesimal
6bfgja
36
Base36
cjyo6
md5
e8eb1b1550ee01960e5b4a5824009137
sha1
2f831336460d437d453dd144bddfeb98292286cb
sha256
a5cb2cf78dd708fdb0a9b4bf0a06d5decbc877be8fcad0f44bddf9db68a712cb
sha512
a6a35e4be1ed92a9fa1683b31de620d6537c7ffee1ee4f7ed1a46b7fe79bec06b816fe167c0ee9d03ab6b9ba42693ca692a0ca75a74e6d9ed0ac8c9d422d1d00
ripemd-160
501abbbeb57f03cfe076eb6afab1a39f6e87a8de
Diameter
42173580
Circumference
132492209.10358
Area
1.3969176950017E+15
Volume
3.9275346775712E+22
Surface area
5.5876707800066E+15
Circumference
132492209.10358
Perimeter
84347160
Area
444652712504100
Diagonal
29821224.404913
Surface area
2667916275024600
Volume
9.3762983715043E+21
Space diagonal
36523391.648535
Perimeter
63260370
Area
1.925402724451E+14
Altitude
18261695.824268
Surface area
1.925402724451E+14
Volume
1.1050073601532E+21
Height
9940408.1349711