20921574 is an even 8-digits composite number following 20921573
and preceding 20921575 . In scientific notation, it is written as 2.0921574 × 10^7.
The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors.
There are 6948480 positive integers (up to 20921574) that are relatively prime to 20921574.
20921574 has 16 divisors, whose sum is 41995440
The reverse of 20921574 is 47512902
Previous prime number is 281
Is Prime? no
Number parity even
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty million nine hundred twenty-one thousand five hundred seventy-four
Scientific notation
2.0921574 × 10^7
Engineering notation
2.0921574 × 10^6
Prime Factorization
2 × 3 × 281 × 12409
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20921574
Product of the distinct prime numbers
The prime factorization of 20921574 is 2 × 3 × 281 × 12409.
Since it has a total of 4 prime factors.
2 , 6 , 78 , 11 , 840 , 855 , 3661 , 5195 , 23480 , 66120 , 470965 , 342359 , 7252009 , 9386786 , 76621031 , 96796824 , 911493066 , 646327242 , 4244732993 , 9179509098
n×2
41843148
n×3
62764722
n×4
83686296
n×5
104607870
n÷2
10460787
n÷3
6973858
n÷3
5230393.5
n÷5
4184314.8
n2
437712258637476
n3
9.1576294097911E+21
n4
1.9159202136152E+29
n5
4.0084066527246E+36
2 √n
4574.0107127115
3 √n
275.54854256008
4 √n
67.631432874896
5 √n
29.115139210159
1 , 2 , 3 , 6 , 281 , 562 , 843 , 1686 , 12409 , 24818 , 37227 , 74454 , 3486929 , 6973858 , 10460787 , 20921574
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20921573
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20921574 can be divided by 16 positive divisors.
The sum of these divisors (counting 20921574) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001111110011110011100110
3
Ternary
1110100221000010
4
Quaternary
1033303303212
5
Quinary
20323442244
6
Senary
2024231050
8
Octal
117636346
10
Decimal
20921574
12
Duodecimal
700b486
16
Hexadecimal
13f3ce6
20
Vigesimal
6af3ie
36
Base36
cgf6u
md5
5b84b108d1beedab78bd283855cd6c38
sha1
8983cb0b38fa7eb0e2531da6011743370125eb0f
sha256
da36464ed35889983f56e134618ceb1ed350f7cd3a13b750902e655b392ea262
sha512
76c17474595649ceb2205b4b26fe199f19933ce4169888c15b462bdfb99f9fa2c9e6e91088ddf515715467b5d500cfed55f1554d271c58bb704a763315a404cd
ripemd-160
fb09b014483621e466872955efabd614e1bfbd5b
Diameter
41843148
Circumference
131454126.35987
Area
1.3751136161217E+15
Volume
3.8359388370797E+22
Surface area
5.5004544644868E+15
Circumference
131454126.35987
Perimeter
83686296
Area
437712258637476
Diagonal
29587573.696992
Surface area
2626273551824856
Volume
9.1576294097911E+21
Space diagonal
36237229.142312
Perimeter
62764722
Area
1.8953496776396E+14
Altitude
18118614.571156
Surface area
1.8953496776396E+14
Volume
1.0792369758761E+21
Height
9862524.5656641