21949649 is an odd 8-digits composite number following 21949648
and preceding 21949650 . In scientific notation, it is written as 2.1949649 × 10^7.
The sum of its digits is 44. It has a total of 2 prime factors and 4 positive divisors.
There are 21939264 positive integers (up to 21949649) that are relatively prime to 21949649.
21949649 has 4 divisors, whose sum is 21960036
The reverse of 21949649 is 94694912
Previous prime number is 7433
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 44
Digital Root 8
Name
twenty-one million nine hundred forty-nine thousand six hundred forty-nine
Scientific notation
2.1949649 × 10^7
Engineering notation
2.1949649 × 10^6
Prime Factorization
7433 × 2953
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21949649
Product of the distinct prime numbers
The prime factorization of 21949649 is 7433 × 2953.
Since it has a total of 2 prime factors.
10 , 4 , 61 , 7 , 318 , 818 , 3874 , 7587 , 58151 , 63584 , 528932 , 744154 , 3578328 , 2928761 , 48754520 , 16478940 , 597553331 , 651053891 , 5674400625 , 8956829618
n×2
43899298
n×3
65848947
n×4
87798596
n×5
109748245
n÷2
10974824.5
n÷3
7316549.6666667
n÷3
5487412.25
n÷5
4389929.8
n2
481787091223201
n3
1.057505754508E+22
n4
2.3211880126931E+29
n5
5.0949262141622E+36
2 √n
4685.0452505819
3 √n
279.99000389484
4 √n
68.447390385477
5 √n
29.395815706095
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
-21949648
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 21949649 can be divided by 4 positive divisors.
The sum of these divisors (counting 21949649) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010011101110110011010001
3
Ternary
1112022011020222
4
Quaternary
1103232303101
5
Quinary
21104342044
6
Senary
2102242425
8
Octal
123566321
10
Decimal
21949649
12
Duodecimal
7426415
16
Hexadecimal
14eecd1
20
Vigesimal
6h3e29
36
Base36
d2ggh
md5
b2f8b14488b636861326d5036ab36ed6
sha1
ae77bea1adc70fe13a688197c77006aae5d824a4
sha256
cb4cc4f28b09d4bf7e6f04bc29160c24a3c3577ee0f81649626cbc2529c4247e
sha512
833b100ae504e0129316d54088de8df51628030cce3e266e9bf3921764336236de33bf5d3067d4722a707bb880b170d84ebe0c8592107d6ca3fc330045a0e47b
ripemd-160
8e5b91ecb3541775b95fc6f4382c2dd44a7bf278
Diameter
43899298
Circumference
137913712.09455
Area
1.5135787863812E+15
Volume
4.4296697459885E+22
Surface area
6.0543151455248E+15
Circumference
137913712.09455
Perimeter
87798596
Area
481787091223201
Diagonal
31041491.305129
Surface area
2890722547339206
Volume
1.057505754508E+22
Space diagonal
38017907.276303
Perimeter
65848947
Area
2.0861993010735E+14
Altitude
19008953.638152
Surface area
2.0861993010735E+14
Volume
1.246282483594E+21
Height
10347163.768376