21531689 is an odd 8-digits prime number following 21531688
and preceding 21531690 . In scientific notation, it is written as 2.1531689 × 10^7.
The sum of its digits is 35. It has a total of 1 prime factors and 2 positive divisors.
There are 21531688 positive integers (up to 21531689) that are relatively prime to 21531689.
21531689 has 2 divisors, whose sum is 21531690
The reverse of 21531689 is 98613512
Previous prime number is 1
Is Prime? yes
Number parity odd
Number length 8
Sum of Digits 35
Digital Root 8
Name
twenty-one million five hundred thirty-one thousand six hundred eighty-nine
Scientific notation
2.1531689 × 10^7
Engineering notation
2.1531689 × 10^6
Prime Factorization
21531689
Composite number
ω
Distinct Factors
1
Total number of distinct prime factors
Ω
Total Factors
1
Total number of prime factors
rad
Radical
21531689
Product of the distinct prime numbers
The prime factorization of 21531689 is 21531689.
Since it has a total of 1 prime factors.
10 , 5 , 7 , 5 , 363 , 328 , 2334 , 772 , 5659 , 53293 , 510359 , 760954 , 8571030 , 267944 , 63184614 , 45128343 , 738873616 , 90432486 , 2474031503 , 893422767
n×2
43063378
n×3
64595067
n×4
86126756
n×5
107658445
n÷2
10765844.5
n÷3
7177229.6666667
n÷3
5382922.25
n÷5
4306337.8
n2
463613631192721
n3
9.9823845230024E+21
n4
2.149375990277E+29
n5
4.6279695366711E+36
2 √n
4640.2251022984
3 √n
278.20143518852
4 √n
68.11919775143
5 √n
29.28300351768
2 divisors
τ
Total Divisors
2
Total number of the positive divisors of n
σ
Sum of Divisors
21531690
Sum of all the positive divisors of n
s
Aliquot Sum
1
Sum of the proper positive divisors of n
A
Arithmetic Mean
10765845
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
4640.2252100518
Returns the nth root of the product of n divisors
H
Harmonic Mean
1.9999999071137
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21531689 can be divided by 2 positive divisors.
The sum of these divisors (counting 21531689) is 21531690, the average is 10765845.
Base
System
Value
2
Binary
1010010001000110000101001
3
Ternary
1111111220220222
4
Quaternary
1102020300221
5
Quinary
21003003224
6
Senary
2045255425
8
Octal
122106051
10
Decimal
21531689
12
Duodecimal
7264575
16
Hexadecimal
1488c29
20
Vigesimal
6eb949
36
Base36
cthyh
md5
bf04f4e12aede0986c27d117ae1863eb
sha1
88ede46f02c1c5cd0e21e73f131e0cdd390c7c3a
sha256
311cbdd1bb0bef37e173ba31676f9ef9e886995fcbae0fbe47812cb6e66198a5
sha512
8edabcc9422621c960eaa68573be4a9ac8fe371615626c20cd5befeef0048ff4fa7d37bc13d91612d41c6f700359b26c82dc766b310eedd9511f2fbce980ca3c
ripemd-160
9f991a1fd8d39731e42c24abef6e3931c625f429
Diameter
43063378
Circumference
135287591.96356
Area
1.4564851778591E+15
Volume
4.1814114510364E+22
Surface area
5.8259407114366E+15
Circumference
135287591.96356
Perimeter
86126756
Area
463613631192721
Diagonal
30450406.6046
Surface area
2781681787156326
Volume
9.9823845230024E+21
Space diagonal
37293979.320772
Perimeter
64595067
Area
2.0075059107682E+14
Altitude
18646989.660386
Surface area
2.0075059107682E+14
Volume
1.1764352981044E+21
Height
10150135.534867