68697989 is an odd 8-digits composite number following 68697988
and preceding 68697990 . In scientific notation, it is written as 6.8697989 × 10^7.
The sum of its digits is 62. It has a total of 2 prime factors and 4 positive divisors.
There are 68676300 positive integers (up to 68697989) that are relatively prime to 68697989.
68697989 has 4 divisors, whose sum is 68719680
The reverse of 68697989 is 98979686
Previous prime number is 17839
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 62
Digital Root 8
Name
sixty-eight million six hundred ninety-seven thousand nine hundred eighty-nine
Scientific notation
6.8697989 × 10^7
Engineering notation
6.8697989 × 10^6
Prime Factorization
17839 × 3851
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
68697989
Product of the distinct prime numbers
The prime factorization of 68697989 is 17839 × 3851.
Since it has a total of 2 prime factors.
9 , 2 , 81 , 13 , 563 , 692 , 6204 , 4349 , 74169 , 21092 , 32923 , 401992 , 2523954 , 5371659 , 86565070 , 8874414 , 981070096 , 599692739 , 4628451795 , 7771639163
n×2
137395978
n×3
206093967
n×4
274791956
n×5
343489945
n÷2
34348994.5
n÷3
22899329.666667
n÷3
17174497.25
n÷5
13739597.8
n2
4719413692644121
n3
3.2421422994372E+23
n4
2.2272865602317E+31
n5
1.5301010761464E+39
2 √n
8288.4250011688
3 √n
409.55730325373
4 √n
91.040787568918
5 √n
36.930807595871
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
-68697988
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 68697989 can be divided by 4 positive divisors.
The sum of these divisors (counting 68697989) is 1, the average is 0.25.
Base
System
Value
2
Binary
100000110000011111110000101
3
Ternary
11210021012220222
4
Quaternary
10012003332011
5
Quinary
120041313424
6
Senary
10452234125
8
Octal
406037605
10
Decimal
68697989
12
Duodecimal
1b00b945
16
Hexadecimal
4183f85
20
Vigesimal
11974j9
36
Base36
14wfph
md5
df6c72a7c704d90beccd685db13fe20b
sha1
11b4cda5fedf8d506dd2012932917e1fff55d043
sha256
a1d9fd1c2e82208b077516667d7e745237297159f0b7b0e918532ceabb1da5fe
sha512
9df9bd66bacce6ea4573197ae723d537bb2218af251e952f7adbd3be63035ec28ab075bcaaa4481122f1a396c307e0358bbe069cf0054d9541e9b8e790fa9c9f
ripemd-160
3bb529384afe15c534553d53929564a80aebba79
Diameter
137395978
Circumference
431642195.11758
Area
1.4826475386062E+16
Volume
1.3580653906406E+24
Surface area
5.9305901544247E+16
Circumference
431642195.11758
Perimeter
274791956
Area
4719413692644121
Diagonal
97153627.751558
Surface area
28316482155864726
Volume
3.2421422994372E+23
Space diagonal
118988407.32581
Perimeter
206093967
Area
2.043566074399E+15
Altitude
59494203.662904
Surface area
2.043566074399E+15
Volume
3.8209013425063E+22
Height
32384542.583853