66156921 is an odd 8-digits composite number following 66156920
and preceding 66156922 . In scientific notation, it is written as 6.6156921 × 10^7.
The sum of its digits is 36. It has a total of 4 prime factors and 12 positive divisors.
There are 44013240 positive integers (up to 66156921) that are relatively prime to 66156921.
66156921 has 12 divisors, whose sum is 95758000
The reverse of 66156921 is 12965166
Previous prime number is 499
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
sixty-six million one hundred fifty-six thousand nine hundred twenty-one
Scientific notation
6.6156921 × 10^7
Engineering notation
6.6156921 × 10^6
Prime Factorization
3 × 3 × 499 × 14731
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
22052307
Product of the distinct prime numbers
The prime factorization of 66156921 is 3 × 3 × 499 × 14731.
Since it has a total of 4 prime factors.
3 , 2 , 18 , 15 , 975 , 553 , 9415 , 4407 , 45482 , 55046 , 576770 , 778440 , 6074969 , 6981057 , 50022717 , 72914733 , 331252258 , 884994378 , 124374817 , 4766072749
n×2
132313842
n×3
198470763
n×4
264627684
n×5
330784605
n÷2
33078460.5
n÷3
22052307
n÷3
16539230.25
n÷5
13231384.2
n2
4376738196200241
n3
2.895515230837E+23
n4
1.9155837238078E+31
n5
1.2672912108484E+39
2 √n
8133.690490792
3 √n
404.44402908277
4 √n
90.186975172649
5 √n
36.653466720613
1 , 3 , 9 , 499 , 1497 , 4491 , 14731 , 44193 , 132579 , 7350769 , 22052307 , 66156921
12 divisors
τ
Total Divisors
12
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-66156920
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.083333333333333
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
12
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 66156921 can be divided by 12 positive divisors.
The sum of these divisors (counting 66156921) is 1, the average is 0.083333333333333.
Base
System
Value
2
Binary
11111100010111100101111001
3
Ternary
11121111010020100
4
Quaternary
3330113211321
5
Quinary
113414010141
6
Senary
10321550013
8
Octal
374274571
10
Decimal
66156921
12
Duodecimal
1a1a5309
16
Hexadecimal
3f17979
20
Vigesimal
10d9c61
36
Base36
13dz09
md5
32fba1cdd6de70897cbdcffb7cc6c538
sha1
a7f88a782da07d79741725030070a107d2a429f2
sha256
b6c4e89c85d4a79990fb03d2f542e31588f40716c79e40e5296d2c66d9f00d6c
sha512
4bf084fe8ea9cf880cb0858380af1a91ad46be452f5811381aa5593baa61581b07c9af21d5f2d0c8c99a35ee5a08f8f54c2a7ed7a65445f4a17fa506b86a5a1e
ripemd-160
45dc064e266a07644dc7de41f79ec81217466904
Diameter
132313842
Circumference
415676193.99544
Area
1.3749928563869E+16
Volume
1.212870583674E+24
Surface area
5.4999714255474E+16
Circumference
415676193.99544
Perimeter
264627684
Area
4376738196200241
Diagonal
93560014.923045
Surface area
26260429177201446
Volume
2.895515230837E+23
Space diagonal
114587148.44432
Perimeter
198470763
Area
1.8951832318115E+15
Altitude
57293574.22216
Surface area
1.8951832318115E+15
Volume
3.4123974245896E+22
Height
31186671.641015