68839980 is an even 8-digits composite number following 68839979
and preceding 68839981 . In scientific notation, it is written as 6.8839980 × 10^7.
The sum of its digits is 51. It has a total of 5 prime factors and 24 positive divisors.
There are 16231680 positive integers (up to 68839980) that are relatively prime to 68839980.
68839980 has 24 divisors, whose sum is 128862720
The reverse of 68839980 is 08993886
Previous prime number is 407
Is Prime? no
Number parity even
Number length 8
Sum of Digits 51
Digital Root 6
Name
sixty-eight million eight hundred thirty-nine thousand nine hundred eighty
Scientific notation
6.8839980 × 10^7
Engineering notation
6.8839980 × 10^6
Prime Factorization
2 × 2 × 15 × 407 × 2819
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
34419990
Product of the distinct prime numbers
The prime factorization of 68839980 is 2 × 2 × 15 × 407 × 2819.
Since it has a total of 5 prime factors.
3 , 1 , 54 , 86 , 385 , 89 , 7462 , 7631 , 4239 , 51392 , 841308 , 399249 , 3317609 , 2362863 , 51874471 , 73992616 , 967863188 , 123036803 , 8837387557 , 315098600
n×2
137679960
n×3
206519940
n×4
275359920
n×5
344199900
n÷2
34419990
n÷3
22946660
n÷3
17209995
n÷5
13767996
n2
4738942846400400
n3
3.2622873076735E+23
n4
2.245757930145E+31
n5
1.5459793099602E+39
2 √n
8296.9861998198
3 √n
409.83927866666
4 √n
91.087793912356
5 √n
36.946061353292
1 , 2 , 4 , 15 , 30 , 60 , 407 , 814 , 1628 , 2819 , 5638 , 6105 , 11276 , 12210 , 24420 , 42285 , 84570 , 169140 , 1147333 , 2294666 , 4589332 , 17209995 , 34419990 , 68839980
24 divisors
τ
Total Divisors
24
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-68839979
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.041666666666667
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
24
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 68839980 can be divided by 24 positive divisors.
The sum of these divisors (counting 68839980) is 1, the average is 0.041666666666667.
Base
System
Value
2
Binary
100000110100110101000101100
3
Ternary
11210112102200220
4
Quaternary
10012212220230
5
Quinary
120110334410
6
Senary
10455251340
8
Octal
406465054
10
Decimal
68839980
12
Duodecimal
1b079b50
16
Hexadecimal
41a6a2c
20
Vigesimal
11a4jj0
36
Base36
14zh9o
md5
e438ddf4cfb0f9e7a007944cc2f272f5
sha1
5977fd66e4d2482cca04bee536646d38d730f99e
sha256
ee39fdbdf707bc23ef3b808006875dd9624bc425d6cd10b3b94082158ba4ccb1
sha512
642880448541107f402fa59a601b54b9162bf04eca01406e6ac8601552c643cf91ecd39ab94c68960087ca930ae47b9e6c898703b9193570c3394ac83ae81c68
ripemd-160
bd56bf544a077e3e42395ca6d0b566689d49cf32
Diameter
137679960
Circumference
432534350.88254
Area
1.4887828032033E+16
Volume
1.3665037119582E+24
Surface area
5.9551312128134E+16
Circumference
432534350.88254
Perimeter
275359920
Area
4738942846400400
Diagonal
97354433.349493
Surface area
28433657078402400
Volume
3.2622873076735E+23
Space diagonal
119234342.95203
Perimeter
206519940
Area
2.0520224460326E+15
Altitude
59617171.476013
Surface area
2.0520224460326E+15
Volume
3.8446424623912E+22
Height
32451477.783164