21531963 is an odd 8-digits composite number following 21531962
and preceding 21531964 . In scientific notation, it is written as 2.1531963 × 10^7.
The sum of its digits is 30. It has a total of 4 prime factors and 16 positive divisors.
There are 13962240 positive integers (up to 21531963) that are relatively prime to 21531963.
21531963 has 16 divisors, whose sum is 29505056
The reverse of 21531963 is 36913512
Previous prime number is 97
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 30
Digital Root 3
Name
twenty-one million five hundred thirty-one thousand nine hundred sixty-three
Scientific notation
2.1531963 × 10^7
Engineering notation
2.1531963 × 10^6
Prime Factorization
3 × 1213 × 97 × 61
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21531963
Product of the distinct prime numbers
The prime factorization of 21531963 is 3 × 1213 × 97 × 61.
Since it has a total of 4 prime factors.
8 , 7 , 20 , 60 , 750 , 312 , 3231 , 5702 , 4998 , 21052 , 277874 , 860001 , 6317131 , 6136831 , 20714726 , 24836157 , 170853199 , 899189072 , 9822998279 , 5580437195
n×2
43063926
n×3
64595889
n×4
86127852
n×5
107659815
n÷2
10765981.5
n÷3
7177321
n÷3
5382990.75
n÷5
4306392.6
n2
463625430633369
n3
9.9827656182568E+21
n4
2.1494853992998E+29
n5
4.6282640086763E+36
2 √n
4640.2546266342
3 √n
278.20261526114
4 √n
68.119414461915
5 √n
29.283078045063
1 , 3 , 61 , 97 , 183 , 291 , 1213 , 3639 , 5917 , 17751 , 73993 , 117661 , 221979 , 352983 , 7177321 , 21531963
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
-21531962
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 21531963 can be divided by 16 positive divisors.
The sum of these divisors (counting 21531963) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010010001000110100111011
3
Ternary
1111111221022010
4
Quaternary
1102020310323
5
Quinary
21003010323
6
Senary
2045301003
8
Octal
122106473
10
Decimal
21531963
12
Duodecimal
7264763
16
Hexadecimal
1488d3b
20
Vigesimal
6eb9i3
36
Base36
cti63
md5
1274e9b6eed1eadff514d6fb0a09ae20
sha1
8cd4e42671a739531bd032b59632c49a4eaf8d8a
sha256
e85b5e2a3bba9e72f1a3764b3b414fbae799f840bdc6afadc14e2d07288f0982
sha512
cd53ce499a2c946178cc2c91032392617d13a7d06af17ce92e4b47a2634d4b2910bfe9151a42cc1c0c18114febfd5a73532bf4416ff84aa0e0f73f16f941d2b5
ripemd-160
d1e0166461a0dd09699de6e7eeda6bc714199b10
Diameter
43063926
Circumference
135289313.55633
Area
1.4565222468952E+15
Volume
4.1815710838432E+22
Surface area
5.8260889875808E+15
Circumference
135289313.55633
Perimeter
86127852
Area
463625430633369
Diagonal
30450794.099116
Surface area
2781752583800214
Volume
9.9827656182568E+21
Space diagonal
37294453.902693
Perimeter
64595889
Area
2.007557003845E+14
Altitude
18647226.951347
Surface area
2.007557003845E+14
Volume
1.1764802106109E+21
Height
10150264.699705