21504257 is an odd 8-digits composite number following 21504256
and preceding 21504258 . In scientific notation, it is written as 2.1504257 × 10^7.
The sum of its digits is 26. It has a total of 3 prime factors and 8 positive divisors.
There are 19897920 positive integers (up to 21504257) that are relatively prime to 21504257.
21504257 has 8 divisors, whose sum is 23163360
The reverse of 21504257 is 75240512
Previous prime number is 43
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 26
Digital Root 8
Name
twenty-one million five hundred four thousand two hundred fifty-seven
Scientific notation
2.1504257 × 10^7
Engineering notation
2.1504257 × 10^6
Prime Factorization
19 × 43 × 26321
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21504257
Product of the distinct prime numbers
The prime factorization of 21504257 is 19 × 43 × 26321.
Since it has a total of 3 prime factors.
9 , 7 , 45 , 86 , 524 , 503 , 2907 , 8911 , 78554 , 87901 , 571090 , 323015 , 8627571 , 9586589 , 71041030 , 24738626 , 668859124 , 492140082 , 5856343383 , 2721850456
n×2
43008514
n×3
64512771
n×4
86017028
n×5
107521285
n÷2
10752128.5
n÷3
7168085.6666667
n÷3
5376064.25
n÷5
4300851.4
n2
462433069122049
n3
9.9442795636993E+21
n4
2.1384434341764E+29
n5
4.5985637188491E+36
2 √n
4637.2682691429
3 √n
278.08323939757
4 √n
68.097490916648
5 √n
29.275538232144
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21504256
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21504257 can be divided by 8 positive divisors.
The sum of these divisors (counting 21504257) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010010000010000100000001
3
Ternary
1111110112021222
4
Quaternary
1102002010001
5
Quinary
21001114012
6
Senary
2044524425
8
Octal
122020401
10
Decimal
21504257
12
Duodecimal
7250715
16
Hexadecimal
1482101
20
Vigesimal
6e80ch
36
Base36
cswsh
md5
730c01915110cb552deea3a143652282
sha1
25a55a29eb12e0d93de12ee16cda0f24c05bda82
sha256
312ef5307896ea8ebad5b34adffaab020a08c3333c7e105cd6c2f76f23a58825
sha512
6d90e70b41acd6c9b389f3a80927f4b3f327d7102515834f4ba791e3228d9118580b33208e3ecc4a4e714460d77b8b6fc15f1f23e685e1c47bab54d56f466626
ripemd-160
bf3985fb22ab08e64f985f88d91f1dd4b439adb0
Diameter
43008514
Circumference
135115231.62421
Area
1.4527763327308E+15
Volume
4.1654500830081E+22
Surface area
5.8111053309232E+15
Circumference
135115231.62421
Perimeter
86017028
Area
462433069122049
Diagonal
30411611.898157
Surface area
2774598414732294
Volume
9.9442795636993E+21
Space diagonal
37246465.703019
Perimeter
64512771
Area
2.0023939270485E+14
Altitude
18623232.851509
Surface area
2.0023939270485E+14
Volume
1.1719445855844E+21
Height
10137203.966052