21031272 is an even 8-digits composite number following 21031271
and preceding 21031273 . In scientific notation, it is written as 2.1031272 × 10^7.
The sum of its digits is 18. It has a total of 5 prime factors and 16 positive divisors.
There are 7010352 positive integers (up to 21031272) that are relatively prime to 21031272.
21031272 has 16 divisors, whose sum is 40894560
The reverse of 21031272 is 27213012
Previous prime number is 27
Is Prime? no
Number parity even
Number length 8
Sum of Digits 18
Digital Root 9
Name
twenty-one million thirty-one thousand two hundred seventy-two
Scientific notation
2.1031272 × 10^7
Engineering notation
2.1031272 × 10^6
Prime Factorization
2 × 2 × 2 × 27 × 97367
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
5257818
Product of the distinct prime numbers
The prime factorization of 21031272 is 2 × 2 × 2 × 27 × 97367.
Since it has a total of 5 prime factors.
1 , 2 , 76 , 71 , 746 , 468 , 1321 , 1327 , 45277 , 86506 , 107128 , 894314 , 7200598 , 8365986 , 50408989 , 49146734 , 765664543 , 398498898 , 2782735504 , 6801770479
n×2
42062544
n×3
63093816
n×4
84125088
n×5
105156360
n÷2
10515636
n÷3
7010424
n÷3
5257818
n÷5
4206254.4
n2
442314401937984
n3
9.3024344966751E+21
n4
1.9564203016176E+29
n5
4.1146007509641E+36
2 √n
4585.9864805732
3 √n
276.02929745707
4 √n
67.719911994724
5 √n
29.145607232979
1 , 2 , 4 , 8 , 27 , 54 , 108 , 216 , 97367 , 194734 , 389468 , 778936 , 2628909 , 5257818 , 10515636 , 21031272
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
-21031271
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 21031272 can be divided by 16 positive divisors.
The sum of these divisors (counting 21031272) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010000001110100101101000
3
Ternary
1110120111111000
4
Quaternary
1100032211220
5
Quinary
20341000042
6
Senary
2030435000
8
Octal
120164550
10
Decimal
21031272
12
Duodecimal
7062a60
16
Hexadecimal
140e968
20
Vigesimal
6b8i3c
36
Base36
ciru0
md5
a11f8c979fd7d6afa980aabebb499fd1
sha1
4411295068566abc9453e3546fc315fc709dc731
sha256
9a7996489d54975bf025cccb509c589b0c645841f96bc95f721a39efac606bf2
sha512
ecac818b6f1658107f26a9bfcbe062bff1dbb2c22b4e4a223e7766669417cbef13ad756ce48468b9a05a4488d7e6b7bd74537a2264607f8acfbd126fb73a4dec
ripemd-160
894f4cc097fcbd33e1a9f1bc1c0bdd69d48c3183
Diameter
42062544
Circumference
132143379.2217
Area
1.3895716757053E+15
Volume
3.896594650034E+22
Surface area
5.5582867028213E+15
Circumference
132143379.2217
Perimeter
84125088
Area
442314401937984
Diagonal
29742710.096358
Surface area
2653886411627904
Volume
9.3024344966751E+21
Space diagonal
36427231.651801
Perimeter
63093816
Area
1.9152775426901E+14
Altitude
18213615.8259
Surface area
1.9152775426901E+14
Volume
1.0963024190238E+21
Height
9914236.6987858