21850981 is an odd 8-digits composite number following 21850980
and preceding 21850982 . In scientific notation, it is written as 2.1850981 × 10^7.
The sum of its digits is 34. It has a total of 2 prime factors and 4 positive divisors.
There are 21833964 positive integers (up to 21850981) that are relatively prime to 21850981.
21850981 has 4 divisors, whose sum is 21868000
The reverse of 21850981 is 18905812
Previous prime number is 1399
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
twenty-one million eight hundred fifty thousand nine hundred eighty-one
Scientific notation
2.1850981 × 10^7
Engineering notation
2.1850981 × 10^6
Prime Factorization
1399 × 15619
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21850981
Product of the distinct prime numbers
The prime factorization of 21850981 is 1399 × 15619.
Since it has a total of 2 prime factors.
8 , 1 , 32 , 81 , 743 , 922 , 5105 , 9994 , 34840 , 46740 , 851152 , 108409 , 8514563 , 3042494 , 19975181 , 34258248 , 673541700 , 733771572 , 780495591 , 6468478365
n×2
43701962
n×3
65552943
n×4
87403924
n×5
109254905
n÷2
10925490.5
n÷3
7283660.3333333
n÷3
5462745.25
n÷5
4370196.2
n2
477465370662361
n3
1.0433086742501E+22
n4
2.2797318018175E+29
n5
4.9814376286609E+36
2 √n
4674.5032891207
3 √n
279.56983692931
4 √n
68.370339249712
5 √n
29.369340060405
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
-21850980
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 21850981 can be divided by 4 positive divisors.
The sum of these divisors (counting 21850981) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010011010110101101100101
3
Ternary
1112010010220121
4
Quaternary
1103112231211
5
Quinary
21043212411
6
Senary
2100201541
8
Octal
123265545
10
Decimal
21850981
12
Duodecimal
73992b1
16
Hexadecimal
14d6b65
20
Vigesimal
6gb791
36
Base36
d0cbp
md5
ad303d7c250ea9c81b4613abc3810308
sha1
ca0953493944c0b676317a70585df9aaa82c9c1d
sha256
14f2146b111be13b1067568dc0b73ce936ddbe5ec2ba4ea0dc612fa7ec8c4df5
sha512
f97d83cde6d8262d2ea7cef4d9a501c39d732eacae42c02c9d6a1e7fb476117c2113667d6fdc8c267fbfb64a6247978bcde07164d523f14b818cae2e7246c6ef
ripemd-160
26f86619dbd1d3268fa3540cf9c2e721ded83f2c
Diameter
43701962
Circumference
137293762.76666
Area
1.5000017008164E+15
Volume
4.3702011552676E+22
Surface area
6.0000068032656E+15
Circumference
137293762.76666
Perimeter
87403924
Area
477465370662361
Diagonal
30901953.681357
Surface area
2864792223974166
Volume
1.0433086742501E+22
Space diagonal
37847009.287222
Perimeter
65552943
Area
2.0674857021048E+14
Altitude
18923504.643611
Surface area
2.0674857021048E+14
Volume
1.229551064055E+21
Height
10300651.227119