21121837 is an odd 8-digits composite number following 21121836
and preceding 21121838 . In scientific notation, it is written as 2.1121837 × 10^7.
The sum of its digits is 25. It has a total of 3 prime factors and 8 positive divisors.
There are 18072000 positive integers (up to 21121837) that are relatively prime to 21121837.
21121837 has 8 divisors, whose sum is 24397632
The reverse of 21121837 is 73812112
Previous prime number is 17
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty-one million one hundred twenty-one thousand eight hundred thirty-seven
Scientific notation
2.1121837 × 10^7
Engineering notation
2.1121837 × 10^6
Prime Factorization
11 × 17 × 112951
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21121837
Product of the distinct prime numbers
The prime factorization of 21121837 is 11 × 17 × 112951.
Since it has a total of 3 prime factors.
9 , 10 , 52 , 63 , 329 , 406 , 9969 , 9802 , 16145 , 76954 , 511955 , 753135 , 5721522 , 6393739 , 17731222 , 27690635 , 872127237 , 878619314 , 5212217995 , 1468790210
n×2
42243674
n×3
63365511
n×4
84487348
n×5
105609185
n÷2
10560918.5
n÷3
7040612.3333333
n÷3
5280459.25
n÷5
4224367.4
n2
446131998254569
n3
9.4231273476173E+21
n4
1.9903375986661E+29
n5
4.2039586333998E+36
2 √n
4595.8499757934
3 √n
276.42494313949
4 √n
67.792698543378
5 √n
29.170665508239
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
-21121836
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 21121837 can be divided by 8 positive divisors.
The sum of these divisors (counting 21121837) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000100100101100101101
3
Ternary
1110202002201021
4
Quaternary
1100210230231
5
Quinary
20401344322
6
Senary
2032414141
8
Octal
120445455
10
Decimal
21121837
12
Duodecimal
70a7351
16
Hexadecimal
1424b2d
20
Vigesimal
6c04bh
36
Base36
ckppp
md5
4e51171f7c55315b60348eaec1b92b5e
sha1
db2b373377ce96ce8dcb905d30e1938229da8fed
sha256
ef148ee426bd7d303df1184958c6ce5fd1bb93f3efd50c2fd3f99c93e845566e
sha512
4367dffd002c9e90d80514e2a9a3a2e8f5dd87522218f11b62c6e93feb056993b208667ad385af521830af0146512b85b4997bb9c00a8c72755c0157942465f3
ripemd-160
615547a026b77e1142310f35004ce215a05558aa
Diameter
42243674
Circumference
132712415.89904
Area
1.4015650082479E+15
Volume
3.9471503532154E+22
Surface area
5.6062600329916E+15
Circumference
132712415.89904
Perimeter
84487348
Area
446131998254569
Diagonal
29870788.347634
Surface area
2676791989527414
Volume
9.4231273476173E+21
Space diagonal
36584094.833188
Perimeter
63365511
Area
1.9318082196479E+14
Altitude
18292047.416594
Surface area
1.9318082196479E+14
Volume
1.1105262079141E+21
Height
9956929.4492113