64671921 is an odd 8-digits composite number following 64671920
and preceding 64671922 . In scientific notation, it is written as 6.4671921 × 10^7.
The sum of its digits is 36. It has a total of 3 prime factors and 8 positive divisors.
There are 41723640 positive integers (up to 64671921) that are relatively prime to 64671921.
64671921 has 8 divisors, whose sum is 74176000
The reverse of 64671921 is 12917646
Previous prime number is 31
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 36
Digital Root 9
Name
sixty-four million six hundred seventy-one thousand nine hundred twenty-one
Scientific notation
6.4671921 × 10^7
Engineering notation
6.4671921 × 10^6
Prime Factorization
9 × 31 × 231799
Composite number
ω
Distinct Factors
3
Total number of distinct prime factors
Ω
Total Factors
3
Total number of prime factors
rad
Radical
64671921
Product of the distinct prime numbers
The prime factorization of 64671921 is 9 × 31 × 231799.
Since it has a total of 3 prime factors.
6 , 9 , 43 , 31 , 527 , 819 , 9778 , 1943 , 21520 , 34682 , 950070 , 604898 , 8849227 , 812913 , 73180446 , 60206921 , 137609369 , 178614899 , 6736385599 , 5363182853
n×2
129343842
n×3
194015763
n×4
258687684
n×5
323359605
n÷2
32335960.5
n÷3
21557307
n÷3
16167980.25
n÷5
12934384.2
n2
4182457365830241
n3
2.7048755234884E+23
n4
1.7492949616988E+31
n5
1.1313026556868E+39
2 √n
8041.8854132598
3 √n
401.39496494347
4 √n
89.676559999031
5 √n
36.487419703761
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
-64671920
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 64671921 can be divided by 8 positive divisors.
The sum of these divisors (counting 64671921) is 1, the average is 0.125.
Base
System
Value
2
Binary
11110110101101000010110001
3
Ternary
11111200200012100
4
Quaternary
3312231002301
5
Quinary
113024000141
6
Senary
10230051013
8
Octal
366550261
10
Decimal
64671921
12
Duodecimal
197a9a69
16
Hexadecimal
3dad0b1
20
Vigesimal
1043jg1
36
Base36
12i569
md5
69f5cd24d9cdbf8404f25c9e8d98bfc8
sha1
4857474ed933d336d6b6449438384405cc42bf33
sha256
92c73af425127456f1fef0971da8940dc353517a3431dc7ae8508dcfea9598eb
sha512
17d21aa21b2dd8d181cd82383f8fca6a34e5c7b4070c95fcdbbfabf73effc967cddc93d4029d8bcd85ee85ebfc22ced859fba303da88e7c13fe42d95f3f47445
ripemd-160
a6fe9ba36da61346b3a3af6e7b2e42e995caceed
Diameter
129343842
Circumference
406345663.81428
Area
1.3139577334445E+16
Volume
1.1330156097955E+24
Surface area
5.2558309337779E+16
Circumference
406345663.81428
Perimeter
258687684
Area
4182457365830241
Diagonal
91459907.782921
Surface area
25094744194981446
Volume
2.7048755234884E+23
Space diagonal
112015052.99508
Perimeter
194015763
Area
1.8110571645272E+15
Altitude
56007526.49754
Surface area
1.8110571645272E+15
Volume
3.1877263748736E+22
Height
30486635.92764