21031730 is an even 8-digits composite number following 21031729
and preceding 21031731 . In scientific notation, it is written as 2.1031730 × 10^7.
The sum of its digits is 17. It has a total of 5 prime factors and 32 positive divisors.
There are 8068032 positive integers (up to 21031730) that are relatively prime to 21031730.
21031730 has 32 divisors, whose sum is 39441600
The reverse of 21031730 is 03713012
Previous prime number is 829
Is Prime? no
Number parity even
Number length 8
Sum of Digits 17
Digital Root 8
Name
twenty-one million thirty-one thousand seven hundred thirty
Scientific notation
2.1031730 × 10^7
Engineering notation
2.1031730 × 10^6
Prime Factorization
2 × 5 × 43 × 829 × 59
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
21031730
Product of the distinct prime numbers
The prime factorization of 21031730 is 2 × 5 × 43 × 829 × 59.
Since it has a total of 5 prime factors.
5 , 8 , 88 , 39 , 753 , 601 , 7828 , 1020 , 24315 , 86544 , 547419 , 599407 , 9881974 , 2456966 , 66010431 , 28257198 , 44731220 , 710126607 , 8221913919 , 8507716309
n×2
42063460
n×3
63095190
n×4
84126920
n×5
105158650
n÷2
10515865
n÷3
7010576.6666667
n÷3
5257932.5
n÷5
4206346
n2
442333666792900
n3
9.3030422498982E+21
n4
1.9565907277845E+29
n5
4.1150487907268E+36
2 √n
4586.036415032
3 √n
276.0313011479
4 √n
67.720280677446
5 √n
29.145734173202
1 , 2 , 5 , 10 , 43 , 59 , 86 , 118 , 215 , 295 , 430 , 590 , 829 , 1658 , 2537 , 4145 , 5074 , 8290 , 12685 , 25370 , 35647 , 48911 , 71294 , 97822 , 178235 , 244555 , 356470 , 489110 , 2103173 , 4206346 , 10515865 , 21031730
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21031729
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21031730 can be divided by 32 positive divisors.
The sum of these divisors (counting 21031730) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1010000001110101100110010
3
Ternary
1110120112002222
4
Quaternary
1100032230302
5
Quinary
20341003410
6
Senary
2030441042
8
Octal
120165462
10
Decimal
21031730
12
Duodecimal
7063182
16
Hexadecimal
140eb32
20
Vigesimal
6b8j6a
36
Base36
cis6q
md5
985e32fd55edb5275b3212fbc2d0001a
sha1
f9ea0402c39382e70f5f8e01aeaba29722a027fa
sha256
404a2e0b89a355556e9d9f04ecb1d74bd017976dd2579ef495b6801b419ee233
sha512
2bf043eea8a0bb432201b422291372ffe1b1ac835838acfd6b06dd0071b73d1a2379507f3b8fc0a4b9d8a1fe54652f5151a3ec896afa8cf442137c6816478c97
ripemd-160
05f45113e94a569dab8391383f352c03415a66f6
Diameter
42063460
Circumference
132146256.92057
Area
1.389632198032E+15
Volume
3.8968492251088E+22
Surface area
5.558528792128E+15
Circumference
132146256.92057
Perimeter
84126920
Area
442333666792900
Diagonal
29743357.806169
Surface area
2654002000757400
Volume
9.3030422498982E+21
Space diagonal
36428024.931071
Perimeter
63095190
Area
1.9153609619589E+14
Altitude
18214012.465535
Surface area
1.9153609619589E+14
Volume
1.096374043428E+21
Height
9914452.6020564