21247557 is an odd 8-digits composite number following 21247556
and preceding 21247558 . In scientific notation, it is written as 2.1247557 × 10^7.
The sum of its digits is 33. It has a total of 2 prime factors and 4 positive divisors.
There are 14165036 positive integers (up to 21247557) that are relatively prime to 21247557.
21247557 has 4 divisors, whose sum is 28330080
The reverse of 21247557 is 75574212
Previous prime number is 3
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 33
Digital Root 6
Name
twenty-one million two hundred forty-seven thousand five hundred fifty-seven
Scientific notation
2.1247557 × 10^7
Engineering notation
2.1247557 × 10^6
Prime Factorization
3 × 7082519
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21247557
Product of the distinct prime numbers
The prime factorization of 21247557 is 3 × 7082519.
Since it has a total of 2 prime factors.
4 , 7 , 34 , 3 , 774 , 829 , 5231 , 8037 , 45972 , 75579 , 959676 , 150614 , 1900081 , 9584914 , 37642438 , 60649616 , 815105050 , 323414204 , 6674776218 , 9926740104
n×2
42495114
n×3
63742671
n×4
84990228
n×5
106237785
n÷2
10623778.5
n÷3
7082519
n÷3
5311889.25
n÷5
4249511.4
n2
451458678468249
n3
9.5923940038988E+21
n4
2.038149383643E+29
n5
4.3305695203469E+36
2 √n
4609.5072404759
3 √n
276.97229801123
4 √n
67.893351960821
5 √n
29.205308666697
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21247556
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21247557 can be divided by 4 positive divisors.
The sum of these divisors (counting 21247557) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010001000011011001000101
3
Ternary
1110222111011120
4
Quaternary
1101003121011
5
Quinary
20414410212
6
Senary
2035224153
8
Octal
121033105
10
Decimal
21247557
12
Duodecimal
7148059
16
Hexadecimal
1443645
20
Vigesimal
6cfihh
36
Base36
cnepx
md5
9e525c7255383c08ad6f844e8e328a20
sha1
28de99c72f86472e3f962d92280809dba5598a61
sha256
adf78c295eefcdba384c59591ba67232398445d04bd9c58e505be34a6be113f8
sha512
d162e6c997ad17efc674a7921a6db43d6560f1c9601ff13efa29d0fc76f64604c606a25a7c34554514fb8cdf32f7bb5a6130803a6d230c20a8c2e30df349ae75
ripemd-160
7dec1a738b9913c88cd3f9673a1b9191d2ba8e0e
Diameter
42495114
Circumference
133502337.95586
Area
1.4182992676752E+15
Volume
4.0180526043983E+22
Surface area
5.6731970707008E+15
Circumference
133502337.95586
Perimeter
84990228
Area
451458678468249
Diagonal
30048583.276695
Surface area
2708752070809494
Volume
9.5923940038988E+21
Space diagonal
36801848.260716
Perimeter
63742671
Area
1.9548734215623E+14
Altitude
18400924.130358
Surface area
1.9548734215623E+14
Volume
1.1304744746617E+21
Height
10016194.425565