20912984 is an even 8-digits composite number following 20912983
and preceding 20912985 . In scientific notation, it is written as 2.0912984 × 10^7.
The sum of its digits is 35. It has a total of 4 prime factors and 8 positive divisors.
There are 10456488 positive integers (up to 20912984) that are relatively prime to 20912984.
20912984 has 8 divisors, whose sum is 39211860
The reverse of 20912984 is 48921902
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty million nine hundred twelve thousand nine hundred eighty-four
Scientific notation
2.0912984 × 10^7
Engineering notation
2.0912984 × 10^6
Prime Factorization
2 × 2 × 2 × 2614123
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
5228246
Product of the distinct prime numbers
The prime factorization of 20912984 is 2 × 2 × 2 × 2614123.
Since it has a total of 4 prime factors.
3 , 9 , 26 , 84 , 867 , 476 , 2741 , 5016 , 20259 , 86272 , 958552 , 536403 , 4586730 , 4777790 , 45340026 , 90435787 , 845886208 , 338073393 , 2819297645 , 4602788207
n×2
41825968
n×3
62738952
n×4
83651936
n×5
104564920
n÷2
10456492
n÷3
6970994.6666667
n÷3
5228246
n÷5
4182596.8
n2
437352899784256
n3
9.1463541955417E+21
n4
1.912775589497E+29
n5
4.0001845298741E+36
2 √n
4573.0716154462
3 √n
275.51082573569
4 √n
67.624489761079
5 √n
29.112747993033
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20912983
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20912984 can be divided by 8 positive divisors.
The sum of these divisors (counting 20912984) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001111110001101101011000
3
Ternary
1110100111012222
4
Quaternary
1033301231120
5
Quinary
20323203414
6
Senary
2024123212
8
Octal
117615530
10
Decimal
20912984
12
Duodecimal
7006508
16
Hexadecimal
13f1b58
20
Vigesimal
6ae294
36
Base36
cg8k8
md5
86daa641c7922f4f3819cdc1ba2e815e
sha1
4d50595c929598eca3cf8254cd9846c8c4422a2a
sha256
6aa32617f3b384e24956b8f8d2eceba82cd87c556c4a498ce812e19efc0cdd30
sha512
8e808dc3821880af1e06aa05d45275235f9689a5cfe9305dba86b5b5da703dad631d66c5fde5a1019b0e072c739d899411ae51f377a169cf05ee0aa26e68c467
ripemd-160
16eb1193c30328fdfbef5d9841f54748a38226c1
Diameter
41825968
Circumference
131400153.79808
Area
1.3739846569884E+15
Volume
3.8312158863792E+22
Surface area
5.4959386279536E+15
Circumference
131400153.79808
Perimeter
83651936
Area
437352899784256
Diagonal
29575425.602492
Surface area
2624117398705536
Volume
9.1463541955417E+21
Space diagonal
36222350.825875
Perimeter
62738952
Area
1.8937936081598E+14
Altitude
18111175.412938
Surface area
1.8937936081598E+14
Volume
1.0779081791336E+21
Height
9858475.2008305