21491297 is an odd 8-digits prime number following 21491296
and preceding 21491298 . In scientific notation, it is written as 2.1491297 × 10^7.
The sum of its digits is 35. It has a total of 1 prime factors and 2 positive divisors.
There are 21491296 positive integers (up to 21491297) that are relatively prime to 21491297.
21491297 has 2 divisors, whose sum is 21491298
The reverse of 21491297 is 79219412
Previous prime number is 1
Is Prime? yes Number parity odd Number length 8 Sum of Digits 35 Digital Root 8
Name
twenty-one million four hundred ninety-one thousand two hundred ninety-seven
Scientific notation
2.1491297 × 10^7
Engineering notation
2.1491297 × 10^6
Prime Factorization
21491297
Composite number
ω Distinct Factors
1 Total number of distinct prime factors
Ω Total Factors
1 Total number of prime factors
rad Radical
21491297 Product of the distinct prime numbers
The prime factorization of 21491297 is 21491297.
Since it has a total of 1 prime factors.
1 , 4 , 91 , 28 , 287 , 879 , 2502 , 6463 , 11595 , 62427 , 887402 , 680107 , 5448210 , 5043435 , 99739689 , 57277199 , 151520965 , 197532002 , 7582790654 , 6239661949
n×2
42982594
n×3
64473891
n×4
85965188
n×5
107456485
n÷2
10745648.5
n÷3
7163765.6666667
n÷3
5372824.25
n÷5
4298259.4
n2
461875846742209
n3
9.9263109994633E+21
n4
2.1332929780383E+29
n5
4.5847232979036E+36
2 √n4635.8706841326
3 √n278.02736390238
4 √n68.087228495017
5 √n29.272008675437
2 divisors
τ Total Divisors
2 Total number of the positive divisors of n
σ Sum of Divisors
21491298 Sum of all the positive divisors of n
s Aliquot Sum
1 Sum of the proper positive divisors of n
A Arithmetic Mean
10745649 Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G Geometric Mean
4635.8707919872 Returns the nth root of the product of n divisors
H Harmonic Mean
1.9999999069391 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21491297 can be divided by 2 positive divisors.
The sum of these divisors (counting 21491297) is 21491298, the average is 10745649.
Base
System
Value
2
Binary
1010001111110111001100001
3
Ternary
1111102212111222
4
Quaternary
1101332321201
5
Quinary
21000210142
6
Senary
2044344425
8
Octal
121767141
10
Decimal
21491297
12
Duodecimal
7245115
16
Hexadecimal
147ee61
20
Vigesimal
6e684h
36
Base36
csmsh
md5
53bbf20fafb2fa1be1bff160f7b9a657
sha1
0615d753bb881d5d030f9ecab54674d8744f3719
sha256
87eaceed53cebbf0f70fe144bceabbb4b7a5bd115f8a38fd3d2e07c382471d42
sha512
402d92d88e21e06b0545da41073ab9ca8f4fbbc6ccbf49d1b363f28aab3f659c34b33a62e251749d4de460c726b5c809a48f2ee4feb0520647e6b994403a96fc
ripemd-160
15ff92b0865f362565184aff65d1753f50846993
Diameter
42982594
Circumference
135033801.54263
Area
1.4510257669959E+15
Volume
4.1579234284215E+22
Surface area
5.8041030679836E+15
Circumference
135033801.54263
Perimeter
85965188
Area
461875846742209
Diagonal
30393283.690388
Surface area
2771255080453254
Volume
9.9263109994633E+21
Space diagonal
37224018.324553
Perimeter
64473891
Area
1.999981083366E+14
Altitude
18612009.162276
Surface area
1.999981083366E+14
Volume
1.1698269699812E+21
Height
10131094.563463