68691855 is an odd 8-digits composite number following 68691854
and preceding 68691856 . In scientific notation, it is written as 6.8691855 × 10^7.
The sum of its digits is 48. It has a total of 5 prime factors and 32 positive divisors.
There are 35562240 positive integers (up to 68691855) that are relatively prime to 68691855.
68691855 has 32 divisors, whose sum is 113160960
The reverse of 68691855 is 55819686
Previous prime number is 281
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 48
Digital Root 3
Name
sixty-eight million six hundred ninety-one thousand eight hundred fifty-five
Scientific notation
6.8691855 × 10^7
Engineering notation
6.8691855 × 10^6
Prime Factorization
3 × 5 × 43 × 281 × 379
Composite number
ω
Distinct Factors
5
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
68691855
Product of the distinct prime numbers
The prime factorization of 68691855 is 3 × 5 × 43 × 281 × 379.
Since it has a total of 5 prime factors.
4 , 8 , 3 , 56 , 750 , 303 , 6540 , 6834 , 9784 , 77730 , 475735 , 777006 , 7859774 , 3862383 , 38614972 , 5310849 , 9883665 , 608738245 , 6142372395 , 9771455171
n×2
137383710
n×3
206075565
n×4
274767420
n×5
343459275
n÷2
34345927.5
n÷3
22897285
n÷3
17172963.75
n÷5
13738371
n2
4718570943341025
n3
3.2412739104719E+23
n4
2.2264911747342E+31
n5
1.5294180893362E+39
2 √n
8288.0549587946
3 √n
409.54511318669
4 √n
91.038755257278
5 √n
36.930148066623
1 , 3 , 5 , 15 , 43 , 129 , 215 , 281 , 379 , 645 , 843 , 1137 , 1405 , 1895 , 4215 , 5685 , 12083 , 16297 , 36249 , 48891 , 60415 , 81485 , 106499 , 181245 , 244455 , 319497 , 532495 , 1597485 , 4579457 , 13738371 , 22897285 , 68691855
32 divisors
τ
Total Divisors
32
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-68691854
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.03125
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
32
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 68691855 can be divided by 32 positive divisors.
The sum of these divisors (counting 68691855) is 1, the average is 0.03125.
Base
System
Value
2
Binary
100000110000010011110001111
3
Ternary
11210020220111210
4
Quaternary
10012002132033
5
Quinary
120041114410
6
Senary
10452145503
8
Octal
406023617
10
Decimal
68691855
12
Duodecimal
1b008293
16
Hexadecimal
418278f
20
Vigesimal
11969cf
36
Base36
14waz3
md5
4639e312a04e06e5f6cbde15704278a6
sha1
b1103292efe4dbb24f23ca5448ea33bbb11209f9
sha256
80ae274abde5f901ce263a0bac1645eabf0e5fd663ef77955065dd229d4be7cd
sha512
50e59ea03b4a923d0949edc4092dc181a082fd2f669ec47fda78068b90a67d3c0c11e38b6586ec54fde36993a02dcf67e9419f0aca8b03bdca68fa3a2e29975c
ripemd-160
e6a71738590ad86dad4fca7c93f7f8cf2dc6d102
Diameter
137383710
Circumference
431603654.05891
Area
1.4823827811042E+16
Volume
1.3577016407215E+24
Surface area
5.929531124417E+16
Circumference
431603654.05891
Perimeter
274767420
Area
4718570943341025
Diagonal
97144952.965566
Surface area
28311425660046150
Volume
3.2412739104719E+23
Space diagonal
118977782.92615
Perimeter
206075565
Area
2.0432011532462E+15
Altitude
59488891.463077
Surface area
2.0432011532462E+15
Volume
3.8198779362963E+22
Height
32381650.988522