68640907 is an odd 8-digits composite number following 68640906
and preceding 68640908 . In scientific notation, it is written as 6.8640907 × 10^7.
The sum of its digits is 40. It has a total of 2 prime factors and 4 positive divisors.
There are 68292280 positive integers (up to 68640907) that are relatively prime to 68640907.
68640907 has 4 divisors, whose sum is 68989536
The reverse of 68640907 is 70904686
Previous prime number is 197
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 40
Digital Root 4
Name
sixty-eight million six hundred forty thousand nine hundred seven
Scientific notation
6.8640907 × 10^7
Engineering notation
6.8640907 × 10^6
Prime Factorization
197 × 348431
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
68640907
Product of the distinct prime numbers
The prime factorization of 68640907 is 197 × 348431.
Since it has a total of 2 prime factors.
8 , 8 , 9 , 29 , 213 , 396 , 9206 , 5538 , 89603 , 7701 , 200654 , 868690 , 6690339 , 9042695 , 78703182 , 63638490 , 345151465 , 942428736 , 3168902750 , 3314289821
n×2
137281814
n×3
205922721
n×4
274563628
n×5
343204535
n÷2
34320453.5
n÷3
22880302.333333
n÷3
17160226.75
n÷5
13728181.4
n2
4711574113782649
n3
3.2340672056776E+23
n4
2.2198930629667E+31
n5
1.5237547328504E+39
2 √n
8284.9808086682
3 √n
409.4438364287
4 √n
91.021869947108
5 √n
36.924668303025
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
-68640906
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 68640907 can be divided by 4 positive divisors.
The sum of these divisors (counting 68640907) is 1, the average is 0.25.
Base
System
Value
2
Binary
100000101110110000010001011
3
Ternary
11210011022121211
4
Quaternary
10011312002023
5
Quinary
120033002112
6
Senary
10451113551
8
Octal
405660213
10
Decimal
68640907
12
Duodecimal
1aba28b7
16
Hexadecimal
417608b
20
Vigesimal
1190257
36
Base36
14v7nv
md5
c648a1aca113a05cd406fd558c6a6843
sha1
b23f5d8bc166549a634a044f85ceeaec66ad2639
sha256
672af3f7b63b41a06cf8d4cb60cd4677ffc97a4d7e6186150bb91614d27c6f9a
sha512
0258576df982c16cb34cc16b29030f40bcc0a760adaf18157a667bdda3708490cbb351dd272f8a4b157f73d8f2a9f9d1494ca500f60e2ad57b1c3d6415ea6243
ripemd-160
83f8d43416fc0be18061aa018229625fc84813e2
Diameter
137281814
Circumference
431283538.33388
Area
1.4801846622703E+16
Volume
1.3546829032763E+24
Surface area
5.9207386490814E+16
Circumference
431283538.33388
Perimeter
274563628
Area
4711574113782649
Diagonal
97072901.61299
Surface area
28269444682695894
Volume
3.2340672056776E+23
Space diagonal
118889538.40161
Perimeter
205922721
Area
2.0401714371745E+15
Altitude
59444769.200805
Surface area
2.0401714371745E+15
Volume
3.8113847532461E+22
Height
32357633.870997