21749957 is an odd 8-digits composite number following 21749956
and preceding 21749958 . In scientific notation, it is written as 2.1749957 × 10^7.
The sum of its digits is 44. It has a total of 2 prime factors and 4 positive divisors.
There are 21733536 positive integers (up to 21749957) that are relatively prime to 21749957.
21749957 has 4 divisors, whose sum is 21766380
The reverse of 21749957 is 75994712
Previous prime number is 1453
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 44
Digital Root 8
Name
twenty-one million seven hundred forty-nine thousand nine hundred fifty-seven
Scientific notation
2.1749957 × 10^7
Engineering notation
2.1749957 × 10^6
Prime Factorization
1453 × 14969
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
21749957
Product of the distinct prime numbers
The prime factorization of 21749957 is 1453 × 14969.
Since it has a total of 2 prime factors.
1 , 8 , 64 , 67 , 804 , 293 , 2329 , 3746 , 50347 , 21627 , 843544 , 195111 , 2187398 , 141423 , 52167682 , 42494555 , 240411422 , 945596718 , 426094613 , 4333633465
n×2
43499914
n×3
65249871
n×4
86999828
n×5
108749785
n÷2
10874978.5
n÷3
7249985.6666667
n÷3
5437489.25
n÷5
4349991.4
n2
473060629501849
n3
1.0289048350058E+22
n4
2.2378635918469E+29
n5
4.8673436894535E+36
2 √n
4663.6849164582
3 √n
279.13832462945
4 √n
68.291177442318
5 √n
29.342132948306
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
-21749956
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 21749957 can be divided by 4 positive divisors.
The sum of these divisors (counting 21749957) is 1, the average is 0.25.
Base
System
Value
2
Binary
1010010111110000011000101
3
Ternary
1111221000022222
4
Quaternary
1102332003011
5
Quinary
21031444312
6
Senary
2054102125
8
Octal
122760305
10
Decimal
21749957
12
Duodecimal
734a945
16
Hexadecimal
14be0c5
20
Vigesimal
6fiehh
36
Base36
cy6dh
md5
8160939d6b09f91885a177707d948bf6
sha1
d94364177969177277140918502028faf916e4fb
sha256
bbfc25e3bccc8ffeda149df820798d0e2e75516e0f59c9801c7fe7000313c3c9
sha512
feafc5c56b229ddf6d3e1f4fdd1c640ac03d1a8cc5e48d5156af1dc4d8645746df58a4f728b0b4ecbedb84b9c71a4e8695afe88ddcf7ec04eaadfbff45d54d47
ripemd-160
e4a5a7d4403a02f7422a8991986bf5cbf3ecb0e0
Diameter
43499914
Circumference
136659010.25419
Area
1.4861637983456E+15
Volume
4.3098664945297E+22
Surface area
5.9446551933823E+15
Circumference
136659010.25419
Perimeter
86999828
Area
473060629501849
Diagonal
30759084.170432
Surface area
2838363777011094
Volume
1.0289048350058E+22
Space diagonal
37672030.586438
Perimeter
65249871
Area
2.0484126133943E+14
Altitude
18836015.293219
Surface area
2.0484126133943E+14
Volume
1.2125759767137E+21
Height
10253028.056811