21031268 is an even 8-digits composite number following 21031267
and preceding 21031269 . In scientific notation, it is written as 2.1031268 × 10^7.
The sum of its digits is 23. It has a total of 4 prime factors and 12 positive divisors.
There are 10176360 positive integers (up to 21031268) that are relatively prime to 21031268.
21031268 has 12 divisors, whose sum is 37992192
The reverse of 21031268 is 86213012
Previous prime number is 31
Is Prime? no
Number parity even
Number length 8
Sum of Digits 23
Digital Root 5
Name
twenty-one million thirty-one thousand two hundred sixty-eight
Scientific notation
2.1031268 × 10^7
Engineering notation
2.1031268 × 10^6
Prime Factorization
2 × 2 × 31 × 169607
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
10515634
Product of the distinct prime numbers
The prime factorization of 21031268 is 2 × 2 × 31 × 169607.
Since it has a total of 4 prime factors.
8 , 6 , 91 , 62 , 378 , 1000 , 7777 , 2829 , 39414 , 8261 , 876532 , 441865 , 8636983 , 6209456 , 36068610 , 2638388 , 210741040 , 461796309 , 9582654734 , 5255967945
n×2
42062536
n×3
63093804
n×4
84125072
n×5
105156340
n÷2
10515634
n÷3
7010422.6666667
n÷3
5257817
n÷5
4206253.6
n2
442314233687824
n3
9.3024291889033E+21
n4
1.9564188132285E+29
n5
4.114596838125E+36
2 √n
4585.986044462
3 √n
276.02927995746
4 √n
67.719908774761
5 √n
29.145606124321
1 , 2 , 4 , 31 , 62 , 124 , 169607 , 339214 , 678428 , 5257817 , 10515634 , 21031268
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21031267
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21031268 can be divided by 12 positive divisors.
The sum of these divisors (counting 21031268) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
1010000001110100101100100
3
Ternary
1110120111110212
4
Quaternary
1100032211210
5
Quinary
20341000033
6
Senary
2030434552
8
Octal
120164544
10
Decimal
21031268
12
Duodecimal
7062a58
16
Hexadecimal
140e964
20
Vigesimal
6b8i38
36
Base36
cirtw
md5
a3dbc9d5cb72202fca1c8b14658ebc73
sha1
dad81abb53f4ab7f8ae8e59ebb3beb2403b9f66b
sha256
2e42f33357f725685ad0e68024ce447d6671c21d5ef4b1c82f3e98d80bcaa943
sha512
d22133300d38eb10420443817c181013f39d90bf163b3d5c268fac1272f5a3c88d2e4d83552eed0d3fc6711d2db79fd7d1280ba213c94a61d19ca0c2f9747b1a
ripemd-160
c025f5b941e315f155952f220af1ab7a8b5d772b
Diameter
42062536
Circumference
132143354.08896
Area
1.3895711471319E+15
Volume
3.8965924267197E+22
Surface area
5.5582845885275E+15
Circumference
132143354.08896
Perimeter
84125072
Area
442314233687824
Diagonal
29742704.439503
Surface area
2653885402126944
Volume
9.3024291889033E+21
Space diagonal
36427224.723597
Perimeter
63093804
Area
1.9152768141455E+14
Altitude
18213612.361799
Surface area
1.9152768141455E+14
Volume
1.0963017934969E+21
Height
9914234.8131678