21697725 is an odd 8-digits composite number following 21697724
and preceding 21697726 . In scientific notation, it is written as 2.1697725 × 10^7.
The sum of its digits is 39. It has a total of 4 prime factors and 16 positive divisors.
There are 9642240 positive integers (up to 21697725) that are relatively prime to 21697725.
21697725 has 16 divisors, whose sum is 25830272
The reverse of 21697725 is 52779612
Previous prime number is 37
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
twenty-one million six hundred ninety-seven thousand seven hundred twenty-five
Scientific notation
2.1697725 × 10^7
Engineering notation
2.1697725 × 10^6
Prime Factorization
75 × 7 × 37 × 1117
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21697725
Product of the distinct prime numbers
The prime factorization of 21697725 is 75 × 7 × 37 × 1117.
Since it has a total of 4 prime factors.
6 , 8 , 61 , 46 , 48 , 23 , 9976 , 9263 , 21589 , 80026 , 757518 , 711384 , 316577 , 2564995 , 65623579 , 57572945 , 588378419 , 327415760 , 912467553 , 2070329897
n×2
43395450
n×3
65093175
n×4
86790900
n×5
108488625
n÷2
10848862.5
n÷3
7232575
n÷3
5424431.25
n÷5
4339545
n2
470791270175625
n3
1.0215099512671E+22
n4
2.2164442007358E+29
n5
4.809179674541E+36
2 √n
4658.0816867032
3 √n
278.91469752521
4 √n
68.250140561784
5 √n
29.328026505593
1 , 7 , 37 , 75 , 259 , 525 , 1117 , 2775 , 7819 , 19425 , 41329 , 83775 , 289303 , 586425 , 3099675 , 21697725
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
-21697724
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 21697725 can be divided by 16 positive divisors.
The sum of these divisors (counting 21697725) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010010110001010010111101
3
Ternary
1111211100200110
4
Quaternary
1102301102331
5
Quinary
21023311400
6
Senary
2053020233
8
Octal
122612275
10
Decimal
21697725
12
Duodecimal
7324679
16
Hexadecimal
14b14bd
20
Vigesimal
6fc465
36
Base36
cx22l
md5
eaf5dd2197fb99912b94d6b8b1680e3f
sha1
4f7375d9d8ccd336effec45f54431bbd03e5e483
sha256
a5649f8582000d7a26e398e8ea621a119ba835972824ba6e73d2ce8cba17109e
sha512
1363c86c9ab055d727d82ae03d6439d301d2d0be814932f604bd1d57277bda1354f28aec647d0cd1ebf688e83d9c8408c223e4b670df2bd38a36ba7cc5067b7b
ripemd-160
16db47d3142e07107843eaec9cc42bba99194655
Diameter
43395450
Circumference
136330826.91922
Area
1.479034395758E+15
Volume
4.2788908779596E+22
Surface area
5.9161375830318E+15
Circumference
136330826.91922
Perimeter
86790900
Area
470791270175625
Diagonal
30685216.967642
Surface area
2824747621053750
Volume
1.0215099512671E+22
Space diagonal
37581562.108657
Perimeter
65093175
Area
2.0385859992602E+14
Altitude
18790781.054329
Surface area
2.0385859992602E+14
Volume
1.2038610226509E+21
Height
10228405.655881