21271807 is an odd 8-digits composite number following 21271806
and preceding 21271808 . In scientific notation, it is written as 2.1271807 × 10^7.
The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors.
There are 21254040 positive integers (up to 21271807) that are relatively prime to 21271807.
21271807 has 4 divisors, whose sum is 21289576
The reverse of 21271807 is 70817212
Previous prime number is 1291
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-one million two hundred seventy-one thousand eight hundred seven
Scientific notation
2.1271807 × 10^7
Engineering notation
2.1271807 × 10^6
Prime Factorization
1291 × 16477
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21271807
Product of the distinct prime numbers
The prime factorization of 21271807 is 1291 × 16477.
Since it has a total of 2 prime factors.
7 , 5 , 81 , 100 , 10 , 519 , 2580 , 3134 , 14652 , 39559 , 366823 , 356251 , 2725417 , 3060770 , 71934876 , 56831797 , 84753704 , 531763424 , 4528957023 , 5218484915
n×2
42543614
n×3
63815421
n×4
85087228
n×5
106359035
n÷2
10635903.5
n÷3
7090602.3333333
n÷3
5317951.75
n÷5
4254361.4
n2
452489773045249
n3
9.6252751216923E+21
n4
2.0474699471054E+29
n5
4.3553385553126E+36
2 √n
4612.1369233794
3 √n
277.07762815371
4 √n
67.912715476407
5 √n
29.211972074012
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21271806
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21271807 can be divided by 4 positive divisors.
The sum of these divisors (counting 21271807) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001001001010011111111
3
Ternary
1111000201102201
4
Quaternary
1101021103333
5
Quinary
20421144212
6
Senary
2035532331
8
Octal
121112377
10
Decimal
21271807
12
Duodecimal
715a0a7
16
Hexadecimal
14494ff
20
Vigesimal
6cija7
36
Base36
cnxfj
md5
e02c2a117a31dbb1f2747f195b8a4d5c
sha1
4b02c5fde569cb09ff3425c00bb3d6d2d162d480
sha256
ecd0393c2ea41a96f55fde96a71ce376a69690606f8923e9c941ea5b34594a87
sha512
2fa34e8877f0ab5939b932a9e14e3f534485ee67bc7c4b612ae25189ee488ac1ca35cca30a6039c863641d6afe0a8f397f65f1622498b883734c812d15e54f0f
ripemd-160
23e794f948b13c1c91186798335feb87d19a3e97
Diameter
42543614
Circumference
133654705.19956
Area
1.4215385468235E+15
Volume
4.0318258148119E+22
Surface area
5.6861541872939E+15
Circumference
133654705.19956
Perimeter
85087228
Area
452489773045249
Diagonal
30082877.955583
Surface area
2714938638271494
Volume
9.6252751216923E+21
Space diagonal
36843850.492799
Perimeter
63815421
Area
1.9593381920492E+14
Altitude
18421925.2464
Surface area
1.9593381920492E+14
Volume
1.1343495515558E+21
Height
10027625.985194