20921379 is an odd 8-digits composite number following 20921378
and preceding 20921380 . In scientific notation, it is written as 2.0921379 × 10^7.
The sum of its digits is 33. It has a total of 3 prime factors and 8 positive divisors.
There are 13684320 positive integers (up to 20921379) that are relatively prime to 20921379.
20921379 has 8 divisors, whose sum is 28421712
The reverse of 20921379 is 97312902
Previous prime number is 53
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty million nine hundred twenty-one thousand three hundred seventy-nine
Scientific notation
2.0921379 × 10^7
Engineering notation
2.0921379 × 10^6
Prime Factorization
3 × 53 × 131581
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
20921379
Product of the distinct prime numbers
The prime factorization of 20921379 is 3 × 53 × 131581.
Since it has a total of 3 prime factors.
3 , 10 , 21 , 85 , 181 , 986 , 1953 , 3190 , 38297 , 53217 , 27060 , 459712 , 2298505 , 1569315 , 86953181 , 47665 , 993421225 , 574156603 , 6248397049 , 1171453989
n×2
41842758
n×3
62764137
n×4
83685516
n×5
104606895
n÷2
10460689.5
n÷3
6973793
n÷3
5230344.75
n÷5
4184275.8
n2
437704099261641
n3
9.1573733505064E+21
n4
1.9158487851044E+29
n5
4.008219853986E+36
2 √n
4573.9893965771
3 √n
275.54768647196
4 √n
67.631275284273
5 √n
29.115084936295
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
-20921378
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 20921379 can be divided by 8 positive divisors.
The sum of these divisors (counting 20921379) is 1, the average is 0.125.
Base
System
Value
2
Binary
1001111110011110000100011
3
Ternary
1110100220201220
4
Quaternary
1033303300203
5
Quinary
20323441004
6
Senary
2024230123
8
Octal
117636043
10
Decimal
20921379
12
Duodecimal
700b343
16
Hexadecimal
13f3c23
20
Vigesimal
6af38j
36
Base36
cgf1f
md5
1ab12c8935ff0ce1002ec119d15b466b
sha1
8ccd41db725fd688b8f966d327793e5415a326f9
sha256
b71bec12ef00eec472ebc3c91b6b84747e0700aa9fef0f149e685e8ad975f39a
sha512
1a7bb39bb9e131255b96cd0ff85ce28980bbad29c3cf9fb19500e06c5b35c1e040ad77e211ad303cf216d454398c0641172bd485c6f8ee35a865a18d5010ea31
ripemd-160
40cca54134f0c612b588753abf447713309a8cca
Diameter
41842758
Circumference
131452901.13874
Area
1.3750879826865E+15
Volume
3.8358315792173E+22
Surface area
5.500351930746E+15
Circumference
131452901.13874
Perimeter
83685516
Area
437704099261641
Diagonal
29587297.925348
Surface area
2626224595569846
Volume
9.1573733505064E+21
Space diagonal
36236891.392405
Perimeter
62764137
Area
1.8953143465058E+14
Altitude
18118445.696202
Surface area
1.8953143465058E+14
Volume
1.079206799E+21
Height
9862432.6417826