68279991 is an odd 8-digits composite number following 68279990
and preceding 68279992 . In scientific notation, it is written as 6.8279991 × 10^7.
The sum of its digits is 51. It has a total of 2 prime factors and 4 positive divisors.
There are 42018432 positive integers (up to 68279991) that are relatively prime to 68279991.
68279991 has 4 divisors, whose sum is 70030800
The reverse of 68279991 is 19997286
Previous prime number is 39
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 51
Digital Root 6
Name
sixty-eight million two hundred seventy-nine thousand nine hundred ninety-one
Scientific notation
6.8279991 × 10^7
Engineering notation
6.8279991 × 10^6
Prime Factorization
39 × 1750769
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
68279991
Product of the distinct prime numbers
The prime factorization of 68279991 is 39 × 1750769.
Since it has a total of 2 prime factors.
8 , 6 , 65 , 51 , 732 , 384 , 8852 , 4160 , 75380 , 18654 , 349468 , 855191 , 4012602 , 8951888 , 24245540 , 99254658 , 455240076 , 375194267 , 620271464 , 2579900175
n×2
136559982
n×3
204839973
n×4
273119964
n×5
341399955
n÷2
34139995.5
n÷3
22759997
n÷3
17069997.75
n÷5
13655998.2
n2
4662157170960081
n3
3.1833204967374E+23
n4
2.1735709486735E+31
n5
1.4841140481328E+39
2 √n
8263.1707594603
3 √n
408.72495221949
4 √n
90.90198435381
5 √n
36.885756167948
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
-68279990
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 68279991 can be divided by 4 positive divisors.
The sum of these divisors (counting 68279991) is 1, the average is 0.25.
Base
System
Value
2
Binary
100000100011101111010110111
3
Ternary
11202110222112120
4
Quaternary
10010131322313
5
Quinary
114434424431
6
Senary
10435251023
8
Octal
404357267
10
Decimal
68279991
12
Duodecimal
1aa49a73
16
Hexadecimal
411deb7
20
Vigesimal
116ejjb
36
Base36
14nh6f
md5
917e290720ac3cddb92ab28668898b06
sha1
d0f59c2793cc27761fbbe1557f8bc07137a1ba66
sha256
c22b633192ef9969cc13cf9025b8a6d864d2afa128cb9e0c3a4275063ab18db0
sha512
4ff545c66bcc5f2fbabccd2cb90837880e0ea7bd588af093dc0f4d21e622ff45cd9a4230d77bd9c90009e6a039bbca136a2f8da683e78c71920b3ce97c1bfefa
ripemd-160
0d761ec6d5f70380ce318b95389f073a9781903f
Diameter
136559982
Circumference
429015836.22555
Area
1.4646598718169E+16
Volume
1.3334261715429E+24
Surface area
5.8586394872677E+16
Circumference
429015836.22555
Perimeter
273119964
Area
4662157170960081
Diagonal
96562489.310913
Surface area
27972943025760486
Volume
3.1833204967374E+23
Space diagonal
118264413.55235
Perimeter
204839973
Area
2.0187732732436E+15
Altitude
59132206.776173
Surface area
2.0187732732436E+15
Volume
3.7515791832219E+22
Height
32187496.436971