21531294 is an even 8-digits composite number following 21531293
and preceding 21531295 . In scientific notation, it is written as 2.1531294 × 10^7.
The sum of its digits is 27. It has a total of 5 prime factors and 32 positive divisors.
There are 6739200 positive integers (up to 21531294) that are relatively prime to 21531294.
21531294 has 32 divisors, whose sum is 44207136
The reverse of 21531294 is 49213512
Previous prime number is 157
Is Prime? no
Number parity even
Number length 8
Sum of Digits 27
Digital Root 9
Name
twenty-one million five hundred thirty-one thousand two hundred ninety-four
Scientific notation
2.1531294 × 10^7
Engineering notation
2.1531294 × 10^6
Prime Factorization
2 × 3 × 57 × 157 × 401
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
21531294
Product of the distinct prime numbers
The prime factorization of 21531294 is 2 × 3 × 57 × 157 × 401.
Since it has a total of 5 prime factors.
9 , 6 , 56 , 67 , 561 , 278 , 9205 , 8258 , 38826 , 14869 , 99570 , 557014 , 9289361 , 9954440 , 34405631 , 28849674 , 527056765 , 951964904 , 3621708481 , 552227367
n×2
43062588
n×3
64593882
n×4
86125176
n×5
107656470
n÷2
10765647
n÷3
7177098
n÷3
5382823.5
n÷5
4306258.8
n2
463596621314436
n3
9.9818351509278E+21
n4
2.1492182729416E+29
n5
4.6275450504878E+36
2 √n
4640.1825395129
3 √n
278.19973397133
4 √n
68.118885336688
5 √n
29.282896077235
1 , 2 , 3 , 6 , 57 , 114 , 157 , 171 , 314 , 342 , 401 , 471 , 802 , 942 , 1203 , 2406 , 8949 , 17898 , 22857 , 26847 , 45714 , 53694 , 62957 , 68571 , 125914 , 137142 , 188871 , 377742 , 3588549 , 7177098 , 10765647 , 21531294
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
-21531293
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 21531294 can be divided by 32 positive divisors.
The sum of these divisors (counting 21531294) is 1, the average is 0.03125.
Base
System
Value
2
Binary
1010010001000101010011110
3
Ternary
1111111220101100
4
Quaternary
1102020222132
5
Quinary
21003000134
6
Senary
2045253530
8
Octal
122105236
10
Decimal
21531294
12
Duodecimal
72642a6
16
Hexadecimal
1488a9e
20
Vigesimal
6eb84e
36
Base36
cthni
md5
56bd713728337423b6cc199f7b14cbab
sha1
0bc21343696770594ae5fae187018ba521516bfa
sha256
30a1a29a764376301a9ac032e22227bf7148d025f03a16c93be32be55cd2d0a8
sha512
a2e5b8a8953437a2f01308458fe78235826a96327a8f354e449c10a3e28348253c403668f9d9792b1f867422e5b33622ce3ecc1c917361b0acb41b79a7f89793
ripemd-160
ef876df48064092fe41868ecd46e0c3ecb3bb4b1
Diameter
43062588
Circumference
135285110.10536
Area
1.4564317397505E+15
Volume
4.1811813305999E+22
Surface area
5.8257269590019E+15
Circumference
135285110.10536
Perimeter
86125176
Area
463596621314436
Diagonal
30449847.990242
Surface area
2781579727886616
Volume
9.9818351509278E+21
Space diagonal
37293295.160703
Perimeter
64593882
Area
2.0074322558347E+14
Altitude
18646647.580351
Surface area
2.0074322558347E+14
Volume
1.1763705539845E+21
Height
10149949.330081