21105877 is an odd 8-digits composite number following 21105876
and preceding 21105878 . In scientific notation, it is written as 2.1105877 × 10^7.
The sum of its digits is 31. It has a total of 3 prime factors and 8 positive divisors.
There are 19234800 positive integers (up to 21105877) that are relatively prime to 21105877.
21105877 has 8 divisors, whose sum is 23018240
The reverse of 21105877 is 77850112
Previous prime number is 79
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty-one million one hundred five thousand eight hundred seventy-seven
Scientific notation
2.1105877 × 10^7
Engineering notation
2.1105877 × 10^6
Prime Factorization
13 × 79 × 20551
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21105877
Product of the distinct prime numbers
The prime factorization of 21105877 is 13 × 79 × 20551.
Since it has a total of 3 prime factors.
10 , 2 , 12 , 42 , 436 , 209 , 7582 , 7344 , 23049 , 26323 , 641381 , 818689 , 9222741 , 2355392 , 73981612 , 42145792 , 881778626 , 435408909 , 8875904721 , 1152667714
n×2
42211754
n×3
63317631
n×4
84423508
n×5
105529385
n÷2
10552938.5
n÷3
7035292.3333333
n÷3
5276469.25
n÷5
4221175.4
n2
445458043939129
n3
9.4017826840399E+21
n4
1.9843286891007E+29
n5
4.1880997239732E+36
2 √n
4594.1132985594
3 √n
276.3553018838
4 √n
67.779888599491
5 √n
29.166255810348
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
-21105876
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 21105877 can be divided by 8 positive divisors.
The sum of these divisors (counting 21105877) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010000100000110011010101
3
Ternary
1110201021211011
4
Quaternary
1100200303111
5
Quinary
20400342002
6
Senary
2032212221
8
Octal
120406325
10
Decimal
21105877
12
Duodecimal
709a071
16
Hexadecimal
1420cd5
20
Vigesimal
6bi4dh
36
Base36
ckded
md5
1341594671e21a018fd55aa76b61016e
sha1
da30730430e24347b08c92120eb554859307844a
sha256
030c36931db452295542c2330dddf4133c28a83a962a5cd73a1e4c05c0dd032a
sha512
c6c8f7771062b13ffcf5ea520c0825dce7e83ca5e137a42b53778f5bd87da99fe8c930f5595d1565150cf80926c8e8476bb6b1d7a5a69c463aad6bf6d6d39028
ripemd-160
e40da72852c7983c1fce65924a35a6321a4cf6c6
Diameter
42211754
Circumference
132612136.26154
Area
1.3994477183216E+15
Volume
3.9382095214436E+22
Surface area
5.5977908732866E+15
Circumference
132612136.26154
Perimeter
84423508
Area
445458043939129
Diagonal
29848217.499178
Surface area
2672748263634774
Volume
9.4017826840399E+21
Space diagonal
36556451.302299
Perimeter
63317631
Area
1.9288899118571E+14
Altitude
18278225.65115
Surface area
1.9288899118571E+14
Volume
1.1080107151878E+21
Height
9949405.8330595