21872005 is an odd 8-digits composite number following 21872004
and preceding 21872006 . In scientific notation, it is written as 2.1872005 × 10^7.
The sum of its digits is 25. It has a total of 2 prime factors and 4 positive divisors.
There are 17497600 positive integers (up to 21872005) that are relatively prime to 21872005.
21872005 has 4 divisors, whose sum is 26246412
The reverse of 21872005 is 50027812
Previous prime number is 5
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 25
Digital Root 7
Name
twenty-one million eight hundred seventy-two thousand five
Scientific notation
2.1872005 × 10^7
Engineering notation
2.1872005 × 10^6
Prime Factorization
5 × 4374401
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21872005
Product of the distinct prime numbers
The prime factorization of 21872005 is 5 × 4374401.
Since it has a total of 2 prime factors.
9 , 7 , 4 , 20 , 238 , 29 , 8500 , 346 , 88535 , 27650 , 355977 , 467011 , 2087142 , 9511221 , 52218423 , 59435414 , 78203539 , 661831099 , 5813443007 , 4167217062
n×2
43744010
n×3
65616015
n×4
87488020
n×5
109360025
n÷2
10936002.5
n÷3
7290668.3333333
n÷3
5468001.25
n÷5
4374401
n2
478384602720025
n3
1.0463230422615E+22
n4
2.288518281196E+29
n5
5.0054483288909E+36
2 √n
4676.7515435396
3 √n
279.65947122967
4 √n
68.386779011294
5 √n
29.374989449836
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
-21872004
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 21872005 can be divided by 4 positive divisors.
The sum of these divisors (counting 21872005) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010011011011110110000101
3
Ternary
1112011012202021
4
Quaternary
1103123312011
5
Quinary
21044401010
6
Senary
2100443141
8
Octal
123336605
10
Decimal
21872005
12
Duodecimal
73a94b1
16
Hexadecimal
14dbd85
20
Vigesimal
6ge005
36
Base36
d0sjp
md5
3575d368099804e8e41d41b4e9735325
sha1
3fbf6aa7d86b85fc122bfdfeeb1c2bd7b3e25940
sha256
7ee17f2f03d157d371ffb5a3f21dc308e6e0f3544c1d98c949cfb28c48d60b11
sha512
ee85b70dd1684d050836c80205cdf22cf3528a9ad6fc8ffe9ce61efbda532c6947cb09cd4b4dde60d2820b25b31e7808c7b45129d66ac52b4002df3e27128c3f
ripemd-160
f6bd3d7b353a2b64a4a65a2a145470015afb24b6
Diameter
43744010
Circumference
137425860.45456
Area
1.5028895534957E+15
Volume
4.3828277104674E+22
Surface area
6.0115582139828E+15
Circumference
137425860.45456
Perimeter
87488020
Area
478384602720025
Diagonal
30931686.107292
Surface area
2870307616320150
Volume
1.0463230422615E+22
Space diagonal
37883423.923401
Perimeter
65616015
Area
2.0714660936743E+14
Altitude
18941711.9617
Surface area
2.0714660936743E+14
Volume
1.2331035308248E+21
Height
10310562.035764