21531628 is an even 8-digits composite number following 21531627
and preceding 21531629 . In scientific notation, it is written as 2.1531628 × 10^7.
The sum of its digits is 28. It has a total of 3 prime factors and 6 positive divisors.
There are 10765812 positive integers (up to 21531628) that are relatively prime to 21531628.
21531628 has 6 divisors, whose sum is 37680356
The reverse of 21531628 is 82613512
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 28
Digital Root 1
Name
twenty-one million five hundred thirty-one thousand six hundred twenty-eight
Scientific notation
2.1531628 × 10^7
Engineering notation
2.1531628 × 10^6
Prime Factorization
2 × 2 × 5382907
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
10765814
Product of the distinct prime numbers
The prime factorization of 21531628 is 2 × 2 × 5382907.
Since it has a total of 3 prime factors.
1 , 7 , 45 , 94 , 395 , 845 , 682 , 4593 , 92383 , 30580 , 13836 , 110946 , 1227499 , 4017630 , 52866296 , 73967899 , 334329244 , 652229397 , 9532579422 , 9831223001
n×2
43063256
n×3
64594884
n×4
86126512
n×5
107658140
n÷2
10765814
n÷3
7177209.3333333
n÷3
5382907
n÷5
4306325.6
n2
463611004330384
n3
9.9822996819482E+21
n4
2.1493516333623E+29
n5
4.6279039810749E+36
2 √n
4640.2185293367
3 √n
278.20117247027
4 √n
68.119149505383
5 √n
29.282986925714
6 divisors
τ
Total Divisors
6
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21531627
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.16666666666667
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
6
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21531628 can be divided by 6 positive divisors.
The sum of these divisors (counting 21531628) is 1, the average is 0.16666666666667.
Base
System
Value
2
Binary
1010010001000101111101100
3
Ternary
1111111220211201
4
Quaternary
1102020233230
5
Quinary
21003003003
6
Senary
2045255244
8
Octal
122105754
10
Decimal
21531628
12
Duodecimal
7264524
16
Hexadecimal
1488bec
20
Vigesimal
6eb918
36
Base36
cthws
md5
fe592111bf5547666976ba5072703708
sha1
d84b98686f51e921719db6661a1c4dec7c320801
sha256
fb80e57e0510719bd7d1013b1a350536407ca6e6fc677701e9f86edf387fad18
sha512
d9502828b31998b9949ba5ea779f76b555c876d8ea651c2ad042673aac1f711f848ae1d99f0e8bfe6a67843ec2fc00ae213f692dc0811029eb9feeb0075e08a8
ripemd-160
264b5ee6041ba959abfee139b979219cf69719bf
Diameter
43063256
Circumference
135287208.68926
Area
1.4564769253277E+15
Volume
4.1813759128987E+22
Surface area
5.8259077013109E+15
Circumference
135287208.68926
Perimeter
86126512
Area
463611004330384
Diagonal
30450320.337572
Surface area
2781666025982304
Volume
9.9822996819482E+21
Space diagonal
37293873.665673
Perimeter
64594884
Area
2.0074945361206E+14
Altitude
18646936.832836
Surface area
2.0074945361206E+14
Volume
1.1764252994903E+21
Height
10150106.779191