21105637 is an odd 8-digits composite number following 21105636
and preceding 21105638 . In scientific notation, it is written as 2.1105637 × 10^7.
The sum of its digits is 25. It has a total of 4 prime factors and 16 positive divisors.
There are 16582320 positive integers (up to 21105637) that are relatively prime to 21105637.
21105637 has 16 divisors, whose sum is 26214400
The reverse of 21105637 is 73650112
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty-one million one hundred five thousand six hundred thirty-seven
Scientific notation
2.1105637 × 10^7
Engineering notation
2.1105637 × 10^6
Prime Factorization
7 × 19 × 31 × 5119
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21105637
Product of the distinct prime numbers
The prime factorization of 21105637 is 7 × 19 × 31 × 5119.
Since it has a total of 4 prime factors.
2 , 4 , 98 , 73 , 386 , 507 , 9615 , 2677 , 96692 , 57796 , 742634 , 548498 , 5475258 , 2731636 , 44793261 , 65003479 , 985216542 , 179452766 , 9695369966 , 1587350417
n×2
42211274
n×3
63316911
n×4
84422548
n×5
105528185
n÷2
10552818.5
n÷3
7035212.3333333
n÷3
5276409.25
n÷5
4221127.4
n2
445447913175769
n3
9.4014619578953E+21
n4
1.9842384335265E+29
n5
4.1878616099458E+36
2 √n
4594.0871781019
3 √n
276.35425437897
4 √n
67.779695913318
5 √n
29.166189478746
1 , 7 , 19 , 31 , 133 , 217 , 589 , 4123 , 5119 , 35833 , 97261 , 158689 , 680827 , 1110823 , 3015091 , 21105637
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21105636
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21105637 can be divided by 16 positive divisors.
The sum of these divisors (counting 21105637) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000100000101111100101
3
Ternary
1110201021111021
4
Quaternary
1100200233211
5
Quinary
20400340022
6
Senary
2032211141
8
Octal
120405745
10
Decimal
21105637
12
Duodecimal
7099ab1
16
Hexadecimal
1420be5
20
Vigesimal
6bi41h
36
Base36
ckd7p
md5
a766c1afe9feb74c427f4807f73b715b
sha1
5fc97f18c6d20f24f2fa814928998f0be976bfa2
sha256
ef583c13df306da01cb1c642b67f30a2903f8a8fed03323bc1d2e3349a303af9
sha512
825c59e7d7996ab71f70979706fbb4369d793d52e63c4f76a6ce9b5012eec1721a50e0b27a65ff6964eb716f7b3697eddf5b1b771c8d610da67d98bb079e1c27
ripemd-160
5fce6491faf1a55936ba83f31d4e3be4a75fb8d8
Diameter
42211274
Circumference
132610628.29707
Area
1.3994158915899E+15
Volume
3.9380751759904E+22
Surface area
5.5976635663596E+15
Circumference
132610628.29707
Perimeter
84422548
Area
445447913175769
Diagonal
29847878.087923
Surface area
2672687479054614
Volume
9.4014619578953E+21
Space diagonal
36556035.610106
Perimeter
63316911
Area
1.9288460443649E+14
Altitude
18278017.805053
Surface area
1.9288460443649E+14
Volume
1.1079729172492E+21
Height
9949292.6959745