21887739 is an odd 8-digits composite number following 21887738
and preceding 21887740 . In scientific notation, it is written as 2.1887739 × 10^7.
The sum of its digits is 45. It has a total of 2 prime factors and 4 positive divisors.
There are 14591664 positive integers (up to 21887739) that are relatively prime to 21887739.
21887739 has 4 divisors, whose sum is 21978056
The reverse of 21887739 is 93778812
Previous prime number is 243
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 45
Digital Root 9
Name
twenty-one million eight hundred eighty-seven thousand seven hundred thirty-nine
Scientific notation
2.1887739 × 10^7
Engineering notation
2.1887739 × 10^6
Prime Factorization
243 × 90073
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21887739
Product of the distinct prime numbers
The prime factorization of 21887739 is 243 × 90073.
Since it has a total of 2 prime factors.
8 , 8 , 33 , 16 , 637 , 268 , 7500 , 9261 , 41048 , 12731 , 786067 , 612822 , 7669075 , 7455326 , 9466924 , 97752523 , 695858621 , 428002790 , 1885103410 , 8392771152
n×2
43775478
n×3
65663217
n×4
87550956
n×5
109438695
n÷2
10943869.5
n÷3
7295913
n÷3
5471934.75
n÷5
4377547.8
n2
479073118532121
n3
1.0485827380347E+22
n4
2.2951105290009E+29
n5
5.0234780234924E+36
2 √n
4678.4333916387
3 √n
279.72651442684
4 √n
68.399074494021
5 √n
29.379214514239
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21887738
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
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
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21887739 can be divided by 4 positive divisors.
The sum of these divisors (counting 21887739) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010011011111101011111011
3
Ternary
1112012000100000
4
Quaternary
1103133223323
5
Quinary
21100401424
6
Senary
2101044043
8
Octal
123375373
10
Decimal
21887739
12
Duodecimal
73b6623
16
Hexadecimal
14dfafb
20
Vigesimal
6gfj6j
36
Base36
d14or
md5
ac3dacfa43327dccde460bd618e2bb29
sha1
5f08d0c9816b2bf5d5814bcb691bc594f0eee5fe
sha256
c9c1a54d0cc9fb4ca1c2653bd76cb813819ae1635e5289f001f159a5ac660166
sha512
3f6170bf5d8771be251caaef389e20a0943aeefb4b7247a4dc84bcea3f9d966b7f61619b6c69986addc253659b23fe54a90a34598e08fdeaad56d00cbd691943
ripemd-160
4b8980493de6fd8f50a86861f92419877ea58bfa
Diameter
43775478
Circumference
137524720.09218
Area
1.5050525897129E+15
Volume
4.3922931019879E+22
Surface area
6.0202103588515E+15
Circumference
137524720.09218
Perimeter
87550956
Area
479073118532121
Diagonal
30953937.343483
Surface area
2874438711192726
Volume
1.0485827380347E+22
Space diagonal
37910676.010807
Perimeter
65663217
Area
2.0744474545953E+14
Altitude
18955338.005403
Surface area
2.0744474545953E+14
Volume
1.2357666078325E+21
Height
10317979.114494