66756989 is an odd 8-digits composite number following 66756988
and preceding 66756990 . In scientific notation, it is written as 6.6756989 × 10^7.
The sum of its digits is 56. It has a total of 2 prime factors and 4 positive divisors.
There are 61621824 positive integers (up to 66756989) that are relatively prime to 66756989.
66756989 has 4 divisors, whose sum is 71892156
The reverse of 66756989 is 98965766
Previous prime number is 13
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 56
Digital Root 2
Name
sixty-six million seven hundred fifty-six thousand nine hundred eighty-nine
Scientific notation
6.6756989 × 10^7
Engineering notation
6.6756989 × 10^6
Prime Factorization
13 × 5135153
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
66756989
Product of the distinct prime numbers
The prime factorization of 66756989 is 13 × 5135153.
Since it has a total of 2 prime factors.
3 , 4 , 50 , 37 , 613 , 592 , 3271 , 9342 , 17516 , 81760 , 148135 , 753968 , 9895732 , 2449356 , 8568962 , 97587529 , 589342257 , 671789734 , 9391852748 , 1041868346
n×2
133513978
n×3
200270967
n×4
267027956
n×5
333784945
n÷2
33378494.5
n÷3
22252329.666667
n÷3
16689247.25
n÷5
13351397.8
n2
4456495580346121
n3
2.9750222643571E+23
n4
1.9860352857645E+31
n5
1.3258173572539E+39
2 √n
8170.4950278426
3 √n
405.66316996017
4 √n
90.390790614103
5 √n
36.719718910371
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
-66756988
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 66756989 can be divided by 4 positive divisors.
The sum of these divisors (counting 66756989) is 1, the average is 0.25.
Base
System
Value
2
Binary
11111110101010000101111101
3
Ternary
11122121121101002
4
Quaternary
3332222011331
5
Quinary
114042210424
6
Senary
10342500045
8
Octal
376520575
10
Decimal
66756989
12
Duodecimal
1a434625
16
Hexadecimal
3faa17d
20
Vigesimal
10h4c99
36
Base36
13qu0t
md5
4645aa125db48840898a50fa2e10909e
sha1
1336247720bb20d402900b39a6f16aad717a4b53
sha256
c1f2c06fe399ee26fc6b29dd4f259c3f7738ba67c6bf58d9427f68f1f3a97be9
sha512
c7b7e3cd9cf3dfaed8cf4114e1d3d903e9a080176a745ffbde344d3d04d32230ea069bce99d547967b11be92904ebd836856bbca3a45aa2fc58de576590690e7
ripemd-160
6c00456c676dff4806316edbde4ce264749a9262
Diameter
133513978
Circumference
419446532.43635
Area
1.4000493775971E+16
Volume
1.2461744119961E+24
Surface area
5.6001975103883E+16
Circumference
419446532.43635
Perimeter
267027956
Area
4456495580346121
Diagonal
94408639.226992
Surface area
26738973482076726
Volume
2.9750222643571E+23
Space diagonal
115626496.70832
Perimeter
200270967
Area
1.9297191922164E+15
Altitude
57813248.354158
Surface area
1.9297191922164E+15
Volume
3.5060973621798E+22
Height
31469546.408997