21127780 is an even 8-digits composite number following 21127779
and preceding 21127781 . In scientific notation, it is written as 2.1127780 × 10^7.
The sum of its digits is 28. It has a total of 5 prime factors and 24 positive divisors.
There are 8324448 positive integers (up to 21127780) that are relatively prime to 21127780.
21127780 has 24 divisors, whose sum is 45033408
The reverse of 21127780 is 08772112
Previous prime number is 67
Is Prime? no
Number parity even
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-one million one hundred twenty-seven thousand seven hundred eighty
Scientific notation
2.1127780 × 10^7
Engineering notation
2.1127780 × 10^6
Prime Factorization
2 × 2 × 5 × 67 × 15767
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
10563890
Product of the distinct prime numbers
The prime factorization of 21127780 is 2 × 2 × 5 × 67 × 15767.
Since it has a total of 5 prime factors.
4 , 4 , 45 , 87 , 497 , 994 , 4328 , 2888 , 6728 , 73961 , 22827 , 513676 , 7759450 , 7813253 , 77847490 , 2762854 , 381312772 , 754231115 , 3307343294 , 8877953311
n×2
42255560
n×3
63383340
n×4
84511120
n×5
105638900
n÷2
10563890
n÷3
7042593.3333333
n÷3
5281945
n÷5
4225556
n2
446383087728400
n3
9.4310836732463E+21
n4
1.9925786100994E+29
n5
4.2098762506886E+36
2 √n
4596.4964918947
3 √n
276.45086638005
4 √n
67.797466707058
5 √n
29.172306859388
1 , 2 , 4 , 5 , 10 , 20 , 67 , 134 , 268 , 335 , 670 , 1340 , 15767 , 31534 , 63068 , 78835 , 157670 , 315340 , 1056389 , 2112778 , 4225556 , 5281945 , 10563890 , 21127780
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
-21127779
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 21127780 can be divided by 24 positive divisors.
The sum of these divisors (counting 21127780) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
1010000100110001001100100
3
Ternary
1110202101212101
4
Quaternary
1100212021210
5
Quinary
20402042110
6
Senary
2032501444
8
Octal
120461144
10
Decimal
21127780
12
Duodecimal
70aa884
16
Hexadecimal
1426264
20
Vigesimal
6c0j90
36
Base36
ckuas
md5
72e9c93c663a1458afe29c4a0b229950
sha1
2088a2a72a42752cfeddf6f0c58ef0665b6576a6
sha256
d5e4379a3d358680a8d2f71e817111b6205d99dd79c7af7703a55846ef6748a8
sha512
2bcb63c9d1bc2e8757ca1cb907f0523e44951e0fae16b40f4c342c087052ea1635023930c637aabfb181b9bd311e6e5214274bbc5b9f531c085e9c6de1349bdc
ripemd-160
fc6e14486838a45d32a317666228c4112d232fe5
Diameter
42255560
Circumference
132749756.86932
Area
1.4023538290943E+15
Volume
3.9504830911015E+22
Surface area
5.6094153163771E+15
Circumference
132749756.86932
Perimeter
84511120
Area
446383087728400
Diagonal
29879193.018835
Surface area
2678298526370400
Volume
9.4310836732463E+21
Space diagonal
36594388.411138
Perimeter
63383340
Area
1.9328954689627E+14
Altitude
18297194.205569
Surface area
1.9328954689627E+14
Volume
1.1114638698817E+21
Height
9959731.0062783