64691888 is an even 8-digits composite number following 64691887
and preceding 64691889 . In scientific notation, it is written as 6.4691888 × 10^7.
The sum of its digits is 50. It has a total of 5 prime factors and 10 positive divisors.
There are 32345936 positive integers (up to 64691888) that are relatively prime to 64691888.
64691888 has 10 divisors, whose sum is 125340564
The reverse of 64691888 is 88819646
Previous prime number is 2
Is Prime? no
Number parity even
Number length 8
Sum of Digits 50
Digital Root 5
Name
sixty-four million six hundred ninety-one thousand eight hundred eighty-eight
Scientific notation
6.4691888 × 10^7
Engineering notation
6.4691888 × 10^6
Prime Factorization
2 × 2 × 2 × 2 × 4043243
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
5
Total number of prime factors
rad
Radical
8086486
Product of the distinct prime numbers
The prime factorization of 64691888 is 2 × 2 × 2 × 2 × 4043243.
Since it has a total of 5 prime factors.
4 , 4 , 21 , 77 , 536 , 784 , 8307 , 2208 , 7529 , 49772 , 234271 , 64146 , 4957764 , 3271788 , 12457073 , 81160350 , 649493187 , 97549518 , 5901226674 , 9231649586
n×2
129383776
n×3
194075664
n×4
258767552
n×5
323459440
n÷2
32345944
n÷3
21563962.666667
n÷3
16172972
n÷5
12938377.6
n2
4185040373004544
n3
2.7073816308589E+23
n4
1.7514562923678E+31
n5
1.1330501430275E+39
2 √n
8043.1267551867
3 √n
401.4362699821
4 √n
89.683480949318
5 √n
36.489672472324
10 divisors
τ
Total Divisors
10
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-64691887
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.1
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
10
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 64691888 can be divided by 10 positive divisors.
The sum of these divisors (counting 64691888) is 1, the average is 0.1.
Base
System
Value
2
Binary
11110110110001111010110000
3
Ternary
11111201200120212
4
Quaternary
3312301322300
5
Quinary
113030120023
6
Senary
10230323252
8
Octal
366617260
10
Decimal
64691888
12
Duodecimal
197b9528
16
Hexadecimal
3db1eb0
20
Vigesimal
10469e8
36
Base36
12ikkw
md5
f7a106edd4b2dafd29236c4fa3afe100
sha1
2b5f947de7865f3263535f04fc6a97706366a82e
sha256
df61bc9a2b13807a0a82463e6559bb72470e49222bce19dd5a7e536fbeaee172
sha512
69c8670d38afd2ac8c30b9fec1a7af515c08cbf7ceb140d31bb6588d3fcf8417ba37d4002b297ed53bc20219e57111ce824c22d17c4eb04da56a10d3a0af0e21
ripemd-160
e0970063851ebd0cdf1d572217dc1d9f4129e45b
Diameter
129383776
Circumference
406471120.17531
Area
1.3147692090808E+16
Volume
1.134065365596E+24
Surface area
5.2590768363231E+16
Circumference
406471120.17531
Perimeter
258767552
Area
4185040373004544
Diagonal
91488145.385121
Surface area
25110242238027264
Volume
2.7073816308589E+23
Space diagonal
112049636.85356
Perimeter
194075664
Area
1.8121756394427E+15
Altitude
56024818.426778
Surface area
1.8121756394427E+15
Volume
3.1906798507337E+22
Height
30496048.461707