21718897 is an odd 8-digits prime number following 21718896
and preceding 21718898 . In scientific notation, it is written as 2.1718897 × 10^7.
The sum of its digits is 43. It has a total of 1 prime factors and 2 positive divisors.
There are 21718896 positive integers (up to 21718897) that are relatively prime to 21718897.
21718897 has 2 divisors, whose sum is 21718898
The reverse of 21718897 is 79881712
Previous prime number is 1
Is Prime? yes Number parity odd Number length 8 Sum of Digits 43 Digital Root 7
Name
twenty-one million seven hundred eighteen thousand eight hundred ninety-seven
Scientific notation
2.1718897 × 10^7
Engineering notation
2.1718897 × 10^6
Prime Factorization
21718897
Composite number
ω Distinct Factors
1 Total number of distinct prime factors
Ω Total Factors
1 Total number of prime factors
rad Radical
21718897 Product of the distinct prime numbers
The prime factorization of 21718897 is 21718897.
Since it has a total of 1 prime factors.
8 , 1 , 62 , 36 , 606 , 394 , 6028 , 8204 , 99650 , 51587 , 835924 , 806871 , 1063730 , 5136999 , 7095264 , 10480274 , 705054501 , 791473079 , 3588634176 , 7232383505
n×2
43437794
n×3
65156691
n×4
86875588
n×5
108594485
n÷2
10859448.5
n÷3
7239632.3333333
n÷3
5429724.25
n÷5
4343779.4
n2
471710486896609
n3
1.0245031478727E+22
n4
2.2251078344824E+29
n5
4.8326887871015E+36
2 √n4660.3537419385
3 √n279.00538694566
4 √n68.266783591572
5 √n29.333747757602
2 divisors
τ Total Divisors
2 Total number of the positive divisors of n
σ Sum of Divisors
21718898 Sum of all the positive divisors of n
s Aliquot Sum
1 Sum of the proper positive divisors of n
A Arithmetic Mean
10859449 Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G Geometric Mean
4660.3538492265 Returns the nth root of the product of n divisors
H Harmonic Mean
1.9999999079143 Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21718897 can be divided by 2 positive divisors.
The sum of these divisors (counting 21718897) is 21718898, the average is 10859449.
Base
System
Value
2
Binary
1010010110110011101110001
3
Ternary
1111212102201121
4
Quaternary
1102312131301
5
Quinary
21030001042
6
Senary
2053302241
8
Octal
122663561
10
Decimal
21718897
12
Duodecimal
7334981
16
Hexadecimal
14b6771
20
Vigesimal
6feh4h
36
Base36
cxiep
md5
5b505fe278c35a1e12d748c9c74695b6
sha1
e0f6c5b6cd02eb1ff61cf931581cb3067d50cb3b
sha256
7b6dc5d194746fdece129aeee8f4d2ca26986aac4d04cb47772a05d4a48a0d28
sha512
7adc8d10ba8a1f749832505b1804c36bddea9f86efdfa48891124cdf77d79ed728d11581b726a6d3fe6ad5454fa7df2ae0d0749901a0617ecd0f1bbdb929d42f
ripemd-160
b40076131a9b90f5260d24f74a7420a6e1f2c1e0
Diameter
43437794
Circumference
136463854.51855
Area
1.4819222002557E+15
Volume
4.2914287505821E+22
Surface area
5.9276888010226E+15
Circumference
136463854.51855
Perimeter
86875588
Area
471710486896609
Diagonal
30715158.697184
Surface area
2830262921379654
Volume
1.0245031478727E+22
Space diagonal
37618233.088355
Perimeter
65156691
Area
2.0425663244199E+14
Altitude
18809116.544178
Surface area
2.0425663244199E+14
Volume
1.2073885386796E+21
Height
10238386.232395