64691381 is an odd 8-digits composite number following 64691380
and preceding 64691382 . In scientific notation, it is written as 6.4691381 × 10^7.
The sum of its digits is 38. It has a total of 3 prime factors and 8 positive divisors.
There are 63534240 positive integers (up to 64691381) that are relatively prime to 64691381.
64691381 has 8 divisors, whose sum is 65854464
The reverse of 64691381 is 18319646
Previous prime number is 383
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 38
Digital Root 2
Name
sixty-four million six hundred ninety-one thousand three hundred eighty-one
Scientific notation
6.4691381 × 10^7
Engineering notation
6.4691381 × 10^6
Prime Factorization
67 × 383 × 2521
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
64691381
Product of the distinct prime numbers
The prime factorization of 64691381 is 67 × 383 × 2521.
Since it has a total of 3 prime factors.
4 , 6 , 96 , 72 , 746 , 273 , 6722 , 9532 , 53572 , 14885 , 134111 , 370149 , 410813 , 3173613 , 50760203 , 49832536 , 141105243 , 942949300 , 6713829536 , 5377261754
n×2
129382762
n×3
194074143
n×4
258765524
n×5
323456905
n÷2
32345690.5
n÷3
21563793.666667
n÷3
16172845.25
n÷5
12938276.2
n2
4184974775687161
n3
2.7073179768937E+23
n4
1.7514013873138E+31
n5
1.1330057443064E+39
2 √n
8043.0952375314
3 √n
401.435221274
4 √n
89.683305233089
5 √n
36.489615277141
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
-64691380
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 64691381 can be divided by 8 positive divisors.
The sum of these divisors (counting 64691381) is 1, the average is 0.125.
Base
System
Value
2
Binary
11110110110001110010110101
3
Ternary
11111201122220002
4
Quaternary
3312301302311
5
Quinary
113030111011
6
Senary
10230321045
8
Octal
366616265
10
Decimal
64691381
12
Duodecimal
197b9185
16
Hexadecimal
3db1cb5
20
Vigesimal
1046891
36
Base36
12ik6t
md5
5f34e02fafce1c7a1712d7539f0ba801
sha1
d5976bd08570ef9ad502a2c4253ae2d0b52f23cb
sha256
9cb6836dcabf91ff17c2fcf8da73e7ca24234a2b91c9369c2748c746d146b3bf
sha512
6fea51c7cc04b9e0d63b47c8e717c87a386b47ea2a49875f6a89550a85eea456e723687b9e7baa19933a69556e5afb8adff267e7bf20633014eafb4a52f2ddf9
ripemd-160
3c9c52b6b5e3690f97921b037ccb73a6bba39411
Diameter
129382762
Circumference
406467934.60036
Area
1.3147486010757E+16
Volume
1.1340387022854E+24
Surface area
5.258994404303E+16
Circumference
406467934.60036
Perimeter
258765524
Area
4184974775687161
Diagonal
91487428.378845
Surface area
25109848654122966
Volume
2.7073179768937E+23
Space diagonal
112048758.7038
Perimeter
194074143
Area
1.8121472349711E+15
Altitude
56024379.351898
Surface area
1.8121472349711E+15
Volume
3.1906048338163E+22
Height
30495809.459615