68731645 is an odd 8-digits composite number following 68731644
and preceding 68731646 . In scientific notation, it is written as 6.8731645 × 10^7.
The sum of its digits is 40. It has a total of 3 prime factors and 8 positive divisors.
There are 52091280 positive integers (up to 68731645) that are relatively prime to 68731645.
68731645 has 8 divisors, whose sum is 86819040
The reverse of 68731645 is 54613786
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4
Name
sixty-eight million seven hundred thirty-one thousand six hundred forty-five
Scientific notation
6.8731645 × 10^7
Engineering notation
6.8731645 × 10^6
Prime Factorization
5 × 19 × 723491
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
68731645
Product of the distinct prime numbers
The prime factorization of 68731645 is 5 × 19 × 723491.
Since it has a total of 3 prime factors.
8 , 5 , 95 , 69 , 263 , 831 , 3623 , 6481 , 20537 , 25319 , 636938 , 847276 , 7712741 , 4636307 , 773260 , 17140672 , 410440472 , 918741344 , 4635461005 , 7696199362
n×2
137463290
n×3
206194935
n×4
274926580
n×5
343658225
n÷2
34365822.5
n÷3
22910548.333333
n÷3
17182911.25
n÷5
13746329
n2
4724039024406025
n3
3.2469097319162E+23
n4
2.2316544704111E+31
n5
1.5338528282296E+39
2 √n
8290.4550538556
3 √n
409.62417474161
4 √n
91.051936024752
5 √n
36.934425459441
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
-68731644
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 68731645 can be divided by 8 positive divisors.
The sum of these divisors (counting 68731645) is 1, the average is 0.125.
Base
System
Value
2
Binary
100000110001100001011111101
3
Ternary
11210022221002111
4
Quaternary
10012030023331
5
Quinary
120043403040
6
Senary
10453054021
8
Octal
406141375
10
Decimal
68731645
12
Duodecimal
1b027311
16
Hexadecimal
418c2fd
20
Vigesimal
119b925
36
Base36
14x5od
md5
03309096c2e6315d2b8da82340b61d99
sha1
fe9d222b80f4bfa2367cc65c2b53e945b6689244
sha256
7d080438c3843b33bc2fa91c1eba5db3fa4d811fa5fc542eb7904fb8d4d795ab
sha512
3e6136c3e7eb2526d81691da79c3a464a65bb2d405563327da3d3bf57dbb57a90163a579ead5fe2f45db6136836c44c9d0582277ea4c37a8f4f494dc588b0af3
ripemd-160
d3b289a9a90d5c40caf302cf87d158f40bdcd82b
Diameter
137463290
Circumference
431853662.00228
Area
1.4841006294345E+16
Volume
1.3600623680876E+24
Surface area
5.9364025177382E+16
Circumference
431853662.00228
Perimeter
274926580
Area
4724039024406025
Diagonal
97201224.523213
Surface area
28344234146436150
Volume
3.2469097319162E+23
Space diagonal
119046701.22779
Perimeter
206194935
Area
2.0455689018023E+15
Altitude
59523350.613894
Surface area
2.0455689018023E+15
Volume
3.8265198155642E+22
Height
32400408.174404