20921270 is an even 8-digits composite number following 20921269
and preceding 20921271 . In scientific notation, it is written as 2.0921270 × 10^7.
The sum of its digits is 23. It has a total of 4 prime factors and 16 positive divisors.
There are 8306880 positive integers (up to 20921270) that are relatively prime to 20921270.
20921270 has 16 divisors, whose sum is 37935648
The reverse of 20921270 is 07212902
Previous prime number is 137
Is Prime? no
Number parity even
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty million nine hundred twenty-one thousand two hundred seventy
Scientific notation
2.0921270 × 10^7
Engineering notation
2.0921270 × 10^6
Prime Factorization
2 × 5 × 137 × 15271
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
20921270
Product of the distinct prime numbers
The prime factorization of 20921270 is 2 × 5 × 137 × 15271.
Since it has a total of 4 prime factors.
8 , 9 , 6 , 67 , 90 , 735 , 3367 , 8325 , 84399 , 69417 , 335880 , 558962 , 4169588 , 6376767 , 78221820 , 43706026 , 54324363 , 766175508 , 2461805011 , 794625113
n×2
41842540
n×3
62763810
n×4
83685080
n×5
104606350
n÷2
10460635
n÷3
6973756.6666667
n÷3
5230317.5
n÷5
4184254
n2
437699538412900
n3
9.1572302220117E+21
n4
1.9158088592687E+29
n5
4.0081154413152E+36
2 √n
4573.9774813613
3 √n
275.54720793834
4 √n
67.631187194676
5 √n
29.11505459842
1 , 2 , 5 , 10 , 137 , 274 , 685 , 1370 , 15271 , 30542 , 76355 , 152710 , 2092127 , 4184254 , 10460635 , 20921270
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
-20921269
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 20921270 can be divided by 16 positive divisors.
The sum of these divisors (counting 20921270) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1001111110011101110110110
3
Ternary
1110100220120212
4
Quaternary
1033303232312
5
Quinary
20323440040
6
Senary
2024225422
8
Octal
117635666
10
Decimal
20921270
12
Duodecimal
700b272
16
Hexadecimal
13f3bb6
20
Vigesimal
6af33a
36
Base36
cgeye
md5
b6839b4da3ea3cee933930b6822546ff
sha1
54379b53f603f55171a129e32e54ad3425f2ff0a
sha256
5b6ba7e75fa4948a73951872d47138b474733fbf22340584de7a0858fbef3199
sha512
16f8f49a681fbdcf2916906bacdea0c52edfaaa13dadf93636cb6aa4d5e1683780a9b6d1eb6fa982c622e485a3baef82a153f9bd56f20d666e645a5cbec6bc86
ripemd-160
ba011e1c16ac797b3e2fab675591175d26feca39
Diameter
41842540
Circumference
131452216.27154
Area
1.3750736543576E+15
Volume
3.8357716256936E+22
Surface area
5.5002946174304E+15
Circumference
131452216.27154
Perimeter
83685080
Area
437699538412900
Diagonal
29587143.776069
Surface area
2626197230477400
Volume
9.1572302220117E+21
Space diagonal
36236702.598867
Perimeter
62763810
Area
1.8952945974515E+14
Altitude
18118351.299433
Surface area
1.8952945974515E+14
Volume
1.0791899311451E+21
Height
9862381.2586898