66881487 is an odd 8-digits composite number following 66881486
and preceding 66881488 . In scientific notation, it is written as 6.6881487 × 10^7.
The sum of its digits is 48. It has a total of 3 prime factors and 8 positive divisors.
There are 44553600 positive integers (up to 66881487) that are relatively prime to 66881487.
66881487 has 8 divisors, whose sum is 89243440
The reverse of 66881487 is 78418866
Previous prime number is 1429
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 48
Digital Root 3
Name
sixty-six million eight hundred eighty-one thousand four hundred eighty-seven
Scientific notation
6.6881487 × 10^7
Engineering notation
6.6881487 × 10^6
Prime Factorization
3 × 1429 × 15601
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
66881487
Product of the distinct prime numbers
The prime factorization of 66881487 is 3 × 1429 × 15601.
Since it has a total of 3 prime factors.
1 , 7 , 12 , 79 , 179 , 442 , 434 , 7220 , 36665 , 32323 , 386543 , 469499 , 7203925 , 4041230 , 97343203 , 37457455 , 893169560 , 138726457 , 6308466831 , 1293242300
n×2
133762974
n×3
200644461
n×4
267525948
n×5
334407435
n÷2
33440743.5
n÷3
22293829
n÷3
16720371.75
n÷5
13376297.4
n2
4473133303331169
n3
2.9916980687601E+23
n4
2.000892154937E+31
n5
1.3382264264882E+39
2 √n
8178.1102340333
3 √n
405.91519296042
4 √n
90.432904598013
5 √n
36.733404743676
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
-66881486
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 66881487 can be divided by 8 positive divisors.
The sum of these divisors (counting 66881487) is 1, the average is 0.125.
Base
System
Value
2
Binary
11111111001000011111001111
3
Ternary
11122211221011010
4
Quaternary
3333020133033
5
Quinary
114110201422
6
Senary
10345300303
8
Octal
377103717
10
Decimal
66881487
12
Duodecimal
1a494693
16
Hexadecimal
3fc87cf
20
Vigesimal
10i03e7
36
Base36
13ti33
md5
8d87ca8107e8380b90c43d266f123bd0
sha1
a1a6fc80545d8c44510eb0f78296ecfc3e177965
sha256
413ee8709fd71d0a69edd4cb4c7f97d07a196e6c474575a2153524f16c2a7df2
sha512
1004a8bb6d7e62247b7e7c2e130c0a74edca61d08c4731d11a17c021d0a889f8a29c757e4e6edde092c0d867bbffe4e5516348b48f4b4963f8e70d6fb333fb10
ripemd-160
1b60d3ce322cfe6282b6939d8fa1cf8ddc19e6b1
Diameter
133762974
Circumference
420228776.44072
Area
1.4052762724273E+16
Volume
1.2531595566101E+24
Surface area
5.6211050897092E+16
Circumference
420228776.44072
Perimeter
267525948
Area
4473133303331169
Diagonal
94584705.98708
Surface area
26838799819987014
Volume
2.9916980687601E+23
Space diagonal
115842133.56976
Perimeter
200644461
Area
1.9369235375995E+15
Altitude
57921066.784879
Surface area
1.9369235375995E+15
Volume
3.5257499861383E+22
Height
31528235.329027