21551870 is an even 8-digits composite number following 21551869
and preceding 21551871 . In scientific notation, it is written as 2.1551870 × 10^7.
The sum of its digits is 29. It has a total of 3 prime factors and 8 positive divisors.
There are 8620744 positive integers (up to 21551870) that are relatively prime to 21551870.
21551870 has 8 divisors, whose sum is 38793384
The reverse of 21551870 is 07815512
Previous prime number is 5
Is Prime? no
Number parity even
Number length 8
Sum of Digits 29
Digital Root 2
Name
twenty-one million five hundred fifty-one thousand eight hundred seventy
Scientific notation
2.1551870 × 10^7
Engineering notation
2.1551870 × 10^6
Prime Factorization
2 × 5 × 2155187
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21551870
Product of the distinct prime numbers
The prime factorization of 21551870 is 2 × 5 × 2155187.
Since it has a total of 3 prime factors.
10 , 2 , 84 , 22 , 652 , 637 , 9091 , 3842 , 59174 , 73048 , 937021 , 649766 , 3066670 , 9755724 , 13079618 , 46616711 , 966028034 , 986933439 , 8161468123 , 5442473186
n×2
43103740
n×3
64655610
n×4
86207480
n×5
107759350
n÷2
10775935
n÷3
7183956.6666667
n÷3
5387967.5
n÷5
4310374
n2
464483100496900
n3
1.0010479399106E+22
n4
2.1574455064721E+29
n5
4.6496985087572E+36
2 √n
4642.3991642253
3 √n
278.28832464113
4 √n
68.135153659659
5 √n
29.288490675356
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
-21551869
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 21551870 can be divided by 8 positive divisors.
The sum of these divisors (counting 21551870) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010001101101011111110
3
Ternary
1111112221121102
4
Quaternary
1102031223332
5
Quinary
21004124440
6
Senary
2045533102
8
Octal
122155376
10
Decimal
21551870
12
Duodecimal
7274192
16
Hexadecimal
148dafe
20
Vigesimal
6edjda
36
Base36
ctxj2
md5
51c2c359ada8717d5f9fe902d6442d49
sha1
7f97bfa883df5de50dbda4f757a02e4fcf1e23d7
sha256
5450cc93704a485ae71c3147d4ae1983045e2d0cc9ab23df12c30ce624923d9e
sha512
7aa5fb79dcfd802dc5237c40361240877cb4e64ec85c6297b9a9f17b3ff87d593bb630c3ce476dad7423a0fb1fd0a549287029a644205d476650b36d436d3223
ripemd-160
b010b2447b69d2b8a6ae051c5bec24320e1075ef
Diameter
43103740
Circumference
135414392.92624
Area
1.4592166962377E+15
Volume
4.1931798052192E+22
Surface area
5.8368667849507E+15
Circumference
135414392.92624
Perimeter
86207480
Area
464483100496900
Diagonal
30478946.848502
Surface area
2786898602981400
Volume
1.0010479399106E+22
Space diagonal
37328933.838119
Perimeter
64655610
Area
2.0112708232944E+14
Altitude
18664466.91906
Surface area
2.0112708232944E+14
Volume
1.179746311006E+21
Height
10159648.949501