21497853 is an odd 8-digits composite number following 21497852
and preceding 21497854 . In scientific notation, it is written as 2.1497853 × 10^7.
The sum of its digits is 39. It has a total of 4 prime factors and 16 positive divisors.
There are 13141440 positive integers (up to 21497853) that are relatively prime to 21497853.
21497853 has 16 divisors, whose sum is 31074176
The reverse of 21497853 is 35879412
Previous prime number is 157
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 39
Digital Root 3
Name
twenty-one million four hundred ninety-seven thousand eight hundred fifty-three
Scientific notation
2.1497853 × 10^7
Engineering notation
2.1497853 × 10^6
Prime Factorization
3 × 13 × 157 × 3511
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
21497853
Product of the distinct prime numbers
The prime factorization of 21497853 is 3 × 13 × 157 × 3511.
Since it has a total of 4 prime factors.
4 , 8 , 93 , 15 , 371 , 40 , 76 , 3358 , 29963 , 22364 , 893801 , 791174 , 3271498 , 3745510 , 7023055 , 75166247 , 465827251 , 431318344 , 9965133206 , 2260292136
n×2
42995706
n×3
64493559
n×4
85991412
n×5
107489265
n÷2
10748926.5
n÷3
7165951
n÷3
5374463.25
n÷5
4299570.6
n2
462157683609609
n3
9.9353979450599E+21
n4
2.135897245194E+29
n5
4.5917205000285E+36
2 √n
4636.5777250036
3 √n
278.05563212158
4 √n
68.092420466625
5 √n
29.273794364558
1 , 3 , 13 , 39 , 157 , 471 , 2041 , 3511 , 6123 , 10533 , 45643 , 136929 , 551227 , 1653681 , 7165951 , 21497853
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
-21497852
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 21497853 can be divided by 16 positive divisors.
The sum of these divisors (counting 21497853) is 1, the average is 0.0625.
Base
System
Value
2
Binary
1010010000000011111111101
3
Ternary
1111110012111210
4
Quaternary
1102000133331
5
Quinary
21000412403
6
Senary
2044435033
8
Octal
122003775
10
Decimal
21497853
12
Duodecimal
7248a79
16
Hexadecimal
14807fd
20
Vigesimal
6e74cd
36
Base36
csrul
md5
2011481be05924ad7a5099673fd9acde
sha1
931c48031e8e61fe508a728349ecd27cc6439a00
sha256
dbe38245938caea0ec677cfeeb197205db52cac10bc7a73c7bada93221e6c7c3
sha512
58c7df30de76b272b66253c28d6e5d90a748347026e0f7866815d4340171b8500af8cbf3c1f05d0e63a9ce8144e0737890e9e6d320ddb65cd88ac58e42f2e409
ripemd-160
d616a6d6ea10fe628290cb64d63eaa92806c5339
Diameter
42995706
Circumference
135074994.10551
Area
1.451911183628E+15
Volume
4.1617297592922E+22
Surface area
5.8076447345121E+15
Circumference
135074994.10551
Perimeter
85991412
Area
462157683609609
Diagonal
30402555.274503
Surface area
2772946101657654
Volume
9.9353979450599E+21
Space diagonal
37235373.649647
Perimeter
64493559
Area
2.0012014728005E+14
Altitude
18617686.824824
Surface area
2.0012014728005E+14
Volume
1.1708978767898E+21
Height
10134185.091501