66561901 is an odd 8-digits composite number following 66561900
and preceding 66561902 . In scientific notation, it is written as 6.6561901 × 10^7.
The sum of its digits is 34. It has a total of 3 prime factors and 8 positive divisors.
There are 55661280 positive integers (up to 66561901) that are relatively prime to 66561901.
66561901 has 8 divisors, whose sum is 77926464
The reverse of 66561901 is 10916566
Previous prime number is 41
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 34
Digital Root 7
Name
sixty-six million five hundred sixty-one thousand nine hundred one
Scientific notation
6.6561901 × 10^7
Engineering notation
6.6561901 × 10^6
Prime Factorization
7 × 41 × 231923
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
66561901
Product of the distinct prime numbers
The prime factorization of 66561901 is 7 × 41 × 231923.
Since it has a total of 3 prime factors.
7 , 9 , 35 , 30 , 829 , 584 , 7539 , 1113 , 64587 , 76462 , 643844 , 743261 , 6130718 , 9268167 , 41868358 , 88467519 , 522797611 , 411592979 , 511586430 , 1878652181
n×2
133123802
n×3
199685703
n×4
266247604
n×5
332809505
n÷2
33280950.5
n÷3
22187300.333333
n÷3
16640475.25
n÷5
13312380.2
n2
4430486664733801
n3
2.9490161475983E+23
n4
1.9629212086384E+31
n5
1.3065576716019E+39
2 √n
8158.5477261581
3 √n
405.26761969652
4 √n
90.32467949657
5 √n
36.698232126246
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
-66561900
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 66561901 can be divided by 8 positive divisors.
The sum of these divisors (counting 66561901) is 1, the average is 0.125.
Base
System
Value
2
Binary
11111101111010011101101101
3
Ternary
11122020200202121
4
Quaternary
3331322131231
5
Quinary
114014440101
6
Senary
10334352541
8
Octal
375723555
10
Decimal
66561901
12
Duodecimal
1a35b751
16
Hexadecimal
3f7a76d
20
Vigesimal
10g04f1
36
Base36
13mnhp
md5
3531911eb41589977ee9ddb3f8587efe
sha1
b86a0e4eab39fd746c26e8332dcfce1047d07d05
sha256
115e209b7369450671549ca2014f24980b581ce9123d10c88c5a204e1814f71a
sha512
b7a3182ad52374c76c07b0af11e351c9ae6f4df306d06941c848392ec5b2f7dc9bbcbd50845922b6fef7f6168c4382694fb539eeecb73f6d4510799777b14034
ripemd-160
64ee590e4fb0117852472fe2e97c71a27773841a
Diameter
133123802
Circumference
418220758.38114
Area
1.3918784357755E+16
Volume
1.2352809952817E+24
Surface area
5.5675137431021E+16
Circumference
418220758.38114
Perimeter
266247604
Area
4430486664733801
Diagonal
94132743.131535
Surface area
26582919988402806
Volume
2.9490161475983E+23
Space diagonal
115288594.38037
Perimeter
199685703
Area
1.9184570013938E+15
Altitude
57644297.190185
Surface area
1.9184570013938E+15
Volume
3.475448859659E+22
Height
31377581.043845