21994489 is an odd 8-digits composite number following 21994488
and preceding 21994490 . In scientific notation, it is written as 2.1994489 × 10^7.
The sum of its digits is 46. It has a total of 2 prime factors and 4 positive divisors.
There are 19994980 positive integers (up to 21994489) that are relatively prime to 21994489.
21994489 has 4 divisors, whose sum is 23994000
The reverse of 21994489 is 98449912
Previous prime number is 11
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 46
Digital Root 1
Name
twenty-one million nine hundred ninety-four thousand four hundred eighty-nine
Scientific notation
2.1994489 × 10^7
Engineering notation
2.1994489 × 10^6
Prime Factorization
11 × 1999499
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21994489
Product of the distinct prime numbers
The prime factorization of 21994489 is 11 × 1999499.
Since it has a total of 2 prime factors.
2 , 4 , 61 , 65 , 934 , 640 , 4522 , 7696 , 78161 , 15303 , 664722 , 638014 , 6785061 , 4823832 , 19358380 , 75502203 , 143528607 , 144640117 , 1813696718 , 7461810627
n×2
43988978
n×3
65983467
n×4
87977956
n×5
109972445
n÷2
10997244.5
n÷3
7331496.3333333
n÷3
5498622.25
n÷5
4398897.8
n2
483757546371121
n3
1.0640000032327E+22
n4
2.3402136367101E+29
n5
5.147180309027E+36
2 √n
4689.8282484543
3 √n
280.1805340832
4 √n
68.482320699976
5 √n
29.407816195139
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
-21994488
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 21994489 can be divided by 4 positive divisors.
The sum of these divisors (counting 21994489) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010011111001101111111001
3
Ternary
1112101102202201
4
Quaternary
1103321233321
5
Quinary
21112310424
6
Senary
2103230201
8
Octal
123715771
10
Decimal
21994489
12
Duodecimal
7448361
16
Hexadecimal
14f9bf9
20
Vigesimal
6h9649
36
Base36
d3f21
md5
dae641bf254ec0d8720d3235ed0c2904
sha1
693e5d346d0a928acf9129697326b996693b7c19
sha256
ed00473cfdd268659ce1caef10e6a685ffb81cf898b6175fadfb474178172e77
sha512
f6757d3f93b0b96cdba9bcb5528dbff22fa85262373d3649bfbeced14e28f6eb989e653ef98e912d7942f2f6c8fbf04ac5a08030e9791418f0f8548e12f19d73
ripemd-160
fb16b7a1abc981fc125d7787503042c67fa2c9e1
Diameter
43988978
Circumference
138195450.12372
Area
1.5197691537981E+15
Volume
4.4568727914337E+22
Surface area
6.0790766151926E+15
Circumference
138195450.12372
Perimeter
87977956
Area
483757546371121
Diagonal
31104904.641266
Surface area
2902545278226726
Volume
1.0640000032327E+22
Space diagonal
38095572.434515
Perimeter
65983467
Area
2.0947316221491E+14
Altitude
19047786.217257
Surface area
2.0947316221491E+14
Volume
1.2539360291139E+21
Height
10368301.547089