21105612 is an even 8-digits composite number following 21105611
and preceding 21105613 . In scientific notation, it is written as 2.1105612 × 10^7.
The sum of its digits is 18. It has a total of 5 prime factors and 24 positive divisors.
There are 6340320 positive integers (up to 21105612) that are relatively prime to 21105612.
21105612 has 24 divisors, whose sum is 37632000
The reverse of 21105612 is 21650112
Previous prime number is 239
Is Prime? no
Number parity even
Number length 8
Sum of Digits 18
Digital Root 9
Name
twenty-one million one hundred five thousand six hundred twelve
Scientific notation
2.1105612 × 10^7
Engineering notation
2.1105612 × 10^6
Prime Factorization
2 × 2 × 99 × 239 × 223
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
10552806
Product of the distinct prime numbers
The prime factorization of 21105612 is 2 × 2 × 99 × 239 × 223.
Since it has a total of 5 prime factors.
3 , 6 , 76 , 10 , 502 , 74 , 7183 , 8029 , 17136 , 58968 , 571990 , 556401 , 260449 , 264477 , 56092760 , 93380111 , 825642868 , 461005299 , 4651201732 , 5592140634
n×2
42211224
n×3
63316836
n×4
84422448
n×5
105528060
n÷2
10552806
n÷3
7035204
n÷3
5276403
n÷5
4221122.4
n2
445446857894544
n3
9.4014285493414E+21
n4
1.9842290320812E+29
n5
4.1878368070242E+36
2 √n
4594.0844572123
3 √n
276.35414526343
4 √n
67.779675841747
5 √n
29.166182569169
1 , 2 , 4 , 99 , 198 , 223 , 239 , 396 , 446 , 478 , 892 , 956 , 22077 , 23661 , 44154 , 47322 , 53297 , 88308 , 94644 , 106594 , 213188 , 5276403 , 10552806 , 21105612
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21105611
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21105612 can be divided by 24 positive divisors.
The sum of these divisors (counting 21105612) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1010000100000101111001100
3
Ternary
1110201021110100
4
Quaternary
1100200233030
5
Quinary
20400334422
6
Senary
2032211100
8
Octal
120405714
10
Decimal
21105612
12
Duodecimal
7099a90
16
Hexadecimal
1420bcc
20
Vigesimal
6bi40c
36
Base36
ckd70
md5
3fda9b2ec1cc33d416964dce4dbc1a16
sha1
48c3528c52e7e6a13ad0ee30aa0f1baa477adeba
sha256
7e594f0d72ff017f1939647846f800078a03d602dfe360d399d239c72d071226
sha512
fde6b5bc29880f2f2fc32e18374543a5ca6a0a741459716fde36a236f05bc9faefcf59f99819da2c8476985776a708a4c43335cb2c0b939ddf6898a3164bac6f
ripemd-160
ca6499df4fc281f038e3205a95cdf8ffca27f379
Diameter
42211224
Circumference
132610471.21743
Area
1.3994125763262E+15
Volume
3.938061181848E+22
Surface area
5.5976503053046E+15
Circumference
132610471.21743
Perimeter
84422448
Area
445446857894544
Diagonal
29847842.732584
Surface area
2672681147367264
Volume
9.4014285493414E+21
Space diagonal
36555992.308835
Perimeter
63316836
Area
1.9288414748632E+14
Altitude
18277996.154418
Surface area
1.9288414748632E+14
Volume
1.1079689800133E+21
Height
9949280.9108614