21872008 is an even 8-digits composite number following 21872007
and preceding 21872009 . In scientific notation, it is written as 2.1872008 × 10^7.
The sum of its digits is 28. It has a total of 6 prime factors and 32 positive divisors.
There are 10644160 positive integers (up to 21872008) that are relatively prime to 21872008.
21872008 has 32 divisors, whose sum is 42120000
The reverse of 21872008 is 80027812
Previous prime number is 149
Is Prime? no
Number parity even
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-one million eight hundred seventy-two thousand eight
Scientific notation
2.1872008 × 10^7
Engineering notation
2.1872008 × 10^6
Prime Factorization
2 × 2 × 2 × 59 × 149 × 311
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
6
Total number of prime factors
rad
Radical
5468002
Product of the distinct prime numbers
The prime factorization of 21872008 is 2 × 2 × 2 × 59 × 149 × 311.
Since it has a total of 6 prime factors.
1 , 5 , 88 , 61 , 796 , 138 , 6242 , 7847 , 92774 , 63418 , 744691 , 875499 , 3705664 , 1177792 , 59379001 , 81373217 , 515626751 , 722182874 , 2352969653 , 7093473794
n×2
43744016
n×3
65616024
n×4
87488032
n×5
109360040
n÷2
10936004
n÷3
7290669.3333333
n÷3
5468002
n÷5
4374401.6
n2
478384733952064
n3
1.0463234728077E+22
n4
2.2885195367839E+29
n5
5.0054517616693E+36
2 √n
4676.751864275
3 √n
279.65948401586
4 √n
68.386781356305
5 √n
29.37499025566
1 , 2 , 4 , 8 , 59 , 118 , 149 , 236 , 298 , 311 , 472 , 596 , 622 , 1192 , 1244 , 2488 , 8791 , 17582 , 18349 , 35164 , 36698 , 46339 , 70328 , 73396 , 92678 , 146792 , 185356 , 370712 , 2734001 , 5468002 , 10936004 , 21872008
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21872007
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21872008 can be divided by 32 positive divisors.
The sum of these divisors (counting 21872008) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1010011011011110110001000
3
Ternary
1112011012202101
4
Quaternary
1103123312020
5
Quinary
21044401013
6
Senary
2100443144
8
Octal
123336610
10
Decimal
21872008
12
Duodecimal
73a94b4
16
Hexadecimal
14dbd88
20
Vigesimal
6ge008
36
Base36
d0sjs
md5
696e8a6572ea6d9a2cb5a3b986a2183b
sha1
38539ad98a3a659040538813a9d3c6ddd7f95b6c
sha256
94107fb540001dc66b2b6696209ddf4decdee87eab733aad6cb0bf97cf000d81
sha512
d8da0a33f8131cb0cfff6f20c666999b7b6de78ce8bd99c6c43c1610fcd0a071839cc6d85e9a41f1c6ebd18c053c24c72b61cb5c0f20fd42e36218f040256f10
ripemd-160
d489cebb274ccf2bc1f97583fe7873a46e7a1016
Diameter
43744016
Circumference
137425879.30411
Area
1.5028899657733E+15
Volume
4.3828295139351E+22
Surface area
6.0115598630932E+15
Circumference
137425879.30411
Perimeter
87488032
Area
478384733952064
Diagonal
30931690.349933
Surface area
2870308403712384
Volume
1.0463234728077E+22
Space diagonal
37883429.119553
Perimeter
65616024
Area
2.0714666619257E+14
Altitude
18941714.559776
Surface area
2.0714666619257E+14
Volume
1.2331040382284E+21
Height
10310563.449978