66887751 is an odd 8-digits composite number following 66887750
and preceding 66887752 . In scientific notation, it is written as 6.6887751 × 10^7.
The sum of its digits is 48. It has a total of 4 prime factors and 16 positive divisors.
There are 37255680 positive integers (up to 66887751) that are relatively prime to 66887751.
66887751 has 16 divisors, whose sum is 71869248
The reverse of 66887751 is 15778866
Previous prime number is 113
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 48
Digital Root 3
Name
sixty-six million eight hundred eighty-seven thousand seven hundred fifty-one
Scientific notation
6.6887751 × 10^7
Engineering notation
6.6887751 × 10^6
Prime Factorization
21 × 71 × 113 × 397
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
66887751
Product of the distinct prime numbers
The prime factorization of 66887751 is 21 × 71 × 113 × 397.
Since it has a total of 4 prime factors.
6 , 4 , 6 , 37 , 129 , 993 , 5641 , 8654 , 15255 , 88664 , 736595 , 478221 , 1623110 , 8545028 , 61379937 , 93361448 , 213436136 , 967377320 , 8688365118 , 6839990350
n×2
133775502
n×3
200663253
n×4
267551004
n×5
334438755
n÷2
33443875.5
n÷3
22295917
n÷3
16721937.75
n÷5
13377550.2
n2
4473971233838001
n3
2.9925387387012E+23
n4
2.001641860121E+31
n5
1.3388532233095E+39
2 √n
8178.4931986277
3 √n
405.92786499422
4 √n
90.435021969521
5 √n
36.734092794848
1 , 21 , 71 , 113 , 397 , 1491 , 2373 , 8023 , 8337 , 28187 , 44861 , 168483 , 591927 , 942081 , 3185131 , 66887751
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-66887750
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 66887751 can be divided by 16 positive divisors.
The sum of these divisors (counting 66887751) is 1, the average is 0.0625.
Base
System
Value
2
Binary
11111111001010000001000111
3
Ternary
11122212020202010
4
Quaternary
3333022001013
5
Quinary
114110402001
6
Senary
10345345303
8
Octal
377120107
10
Decimal
66887751
12
Duodecimal
1a498233
16
Hexadecimal
3fca047
20
Vigesimal
10i0j7b
36
Base36
13tmx3
md5
06006ec0d1313fc84ae3d471b857480d
sha1
7ca0a14ed00ae19dc70a40b831ad224c4c151bb0
sha256
109b98c26a919d9178e2c1dd060b27405fce89654662e6d7a5080db007a6d507
sha512
100b3aa67893a26944a44ffecb5c7ae3d4c1e47c8f9725fc98aabc640856efb05310d26d400a855ff5d8666e73d0fdebe222c8adb59c6011cbaf39a8823805b4
ripemd-160
55ba9391d08e14f20b56a264594139d224f7d437
Diameter
133775502
Circumference
420268134.31349
Area
1.4055395160598E+16
Volume
1.2535116956115E+24
Surface area
5.622158064239E+16
Circumference
420268134.31349
Perimeter
267551004
Area
4473971233838001
Diagonal
94593564.620835
Surface area
26843827403028006
Volume
2.9925387387012E+23
Space diagonal
115852983.13602
Perimeter
200663253
Area
1.9372863721523E+15
Altitude
57926491.568008
Surface area
1.9372863721523E+15
Volume
3.5267407251651E+22
Height
31531188.206945