21446985 is an odd 8-digits composite number following 21446984
and preceding 21446986 . In scientific notation, it is written as 2.1446985 × 10^7.
The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors.
There are 9734400 positive integers (up to 21446985) that are relatively prime to 21446985.
21446985 has 8 divisors, whose sum is 21805896
The reverse of 21446985 is 58964412
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 forty-six thousand nine hundred eighty-five
Scientific notation
2.1446985 × 10^7
Engineering notation
2.1446985 × 10^6
Prime Factorization
105 × 157 × 1301
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
21446985
Product of the distinct prime numbers
The prime factorization of 21446985 is 105 × 157 × 1301.
Since it has a total of 3 prime factors.
5 , 5 , 61 , 68 , 834 , 440 , 3550 , 1804 , 21651 , 82145 , 728441 , 400807 , 4083038 , 2817770 , 6611731 , 40926506 , 28568153 , 76785960 , 9313580624 , 1569479901
n×2
42893970
n×3
64340955
n×4
85787940
n×5
107234925
n÷2
10723492.5
n÷3
7148995
n÷3
5361746.25
n÷5
4289397
n2
459973165590225
n3
9.8650375828161E+21
n4
2.1157531306309E+29
n5
4.5376525656345E+36
2 √n
4631.0889648116
3 √n
277.83614811878
4 √n
68.052104778703
5 √n
29.259927763343
8 divisors
τ
Total Divisors
8
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-21446984
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.125
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
8
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 21446985 can be divided by 8 positive divisors.
The sum of these divisors (counting 21446985) is 1, the average is 0.125.
Base
System
Value
2
Binary
1010001110100000101001001
3
Ternary
1111100121201210
4
Quaternary
1101310011021
5
Quinary
20442300420
6
Senary
2043403333
8
Octal
121640511
10
Decimal
21446985
12
Duodecimal
7223549
16
Hexadecimal
1474149
20
Vigesimal
6e0h95
36
Base36
croll
md5
0ee35f02eaa7998500118ed2d13085f1
sha1
530d75e2e1bc304735a11450ae562dc633a4f67d
sha256
46b842d08095a03381684a21dac762705dcba1b3a8b511e959a421693665be79
sha512
c44d9ba2217a78153b79952e3029b03fd922d4aabf86da538ad506d30103ccf9b8f9690aff40fbbe1b0c382d84c243b1500b42f2356da38b42f76f0ea4399f1d
ripemd-160
81ab7eac6e0f169582acb5e3b35a5868a826fe05
Diameter
42893970
Circumference
134755381.0353
Area
1.4450483178667E+15
Volume
4.132257279675E+22
Surface area
5.7801932714668E+15
Circumference
134755381.0353
Perimeter
85787940
Area
459973165590225
Diagonal
30330617.059012
Surface area
2759838993541350
Volume
9.8650375828161E+21
Space diagonal
37147267.689168
Perimeter
64340955
Area
1.9917422323014E+14
Altitude
18573633.844584
Surface area
1.9917422323014E+14
Volume
1.1626058285782E+21
Height
10110205.686337