20921477 is an odd 8-digits composite number following 20921476
and preceding 20921478 . In scientific notation, it is written as 2.0921477 × 10^7.
The sum of its digits is 32. It has a total of 2 prime factors and 4 positive divisors.
There are 20883360 positive integers (up to 20921477) that are relatively prime to 20921477.
20921477 has 4 divisors, whose sum is 20959596
The reverse of 20921477 is 77412902
Previous prime number is 557
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 32
Digital Root 5
Name
twenty million nine hundred twenty-one thousand four hundred seventy-seven
Scientific notation
2.0921477 × 10^7
Engineering notation
2.0921477 × 10^6
Prime Factorization
557 × 37561
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20921477
Product of the distinct prime numbers
The prime factorization of 20921477 is 557 × 37561.
Since it has a total of 2 prime factors.
7 , 2 , 48 , 72 , 263 , 821 , 4543 , 2718 , 18086 , 43376 , 960808 , 612537 , 2531607 , 7901085 , 4346516 , 93355236 , 446793766 , 435482216 , 4326206233 , 2853512738
n×2
41842954
n×3
62764431
n×4
83685908
n×5
104607385
n÷2
10460738.5
n÷3
6973825.6666667
n÷3
5230369.25
n÷5
4184295.4
n2
437708199861529
n3
9.1575020361144E+21
n4
1.9158846822602E+29
n5
4.0083137314559E+36
2 √n
4574.0001093135
3 √n
275.54811671178
4 √n
67.631354483801
5 √n
29.115112212441
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
-20921476
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 20921477 can be divided by 4 positive divisors.
The sum of these divisors (counting 20921477) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001111110011110010000101
3
Ternary
1110100220212112
4
Quaternary
1033303302011
5
Quinary
20323441402
6
Senary
2024230405
8
Octal
117636205
10
Decimal
20921477
12
Duodecimal
700b405
16
Hexadecimal
13f3c85
20
Vigesimal
6af3dh
36
Base36
cgf45
md5
76fc65b80273bdb4dea0d60f84d9195a
sha1
0637cf3f3b2b4d93b34c798866f9c0dde38a2486
sha256
4ed0469ea454e471002b779e6d9b46a449c0ec6516c137b025b2edef44d4a677
sha512
4107c20a4761568c281b09af8393bd8799e42cc703c69de92a389eb2c7eff8f3ecd3c081d44e14a884631019eaabdfdde7d545675a3f3d3b1fb45194307a3052
ripemd-160
ae2357d9d4c785e176a49da963d9999889b75fff
Diameter
41842954
Circumference
131453516.8909
Area
1.375100865101E+15
Volume
3.8358854829187E+22
Surface area
5.500403460404E+15
Circumference
131453516.8909
Perimeter
83685908
Area
437708199861529
Diagonal
29587436.518277
Surface area
2626249199169174
Volume
9.1575020361144E+21
Space diagonal
36237061.133384
Perimeter
62764431
Area
1.8953321026242E+14
Altitude
18118530.566692
Surface area
1.8953321026242E+14
Volume
1.0792219647443E+21
Height
9862478.8394256