64888921 is an odd 8-digits composite number following 64888920
and preceding 64888922 . In scientific notation, it is written as 6.4888921 × 10^7.
The sum of its digits is 46. It has a total of 4 prime factors and 16 positive divisors.
There are 59875200 positive integers (up to 64888921) that are relatively prime to 64888921.
64888921 has 16 divisors, whose sum is 70156800
The reverse of 64888921 is 12988846
Previous prime number is 89
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 46
Digital Root 1
Name
sixty-four million eight hundred eighty-eight thousand nine hundred twenty-one
Scientific notation
6.4888921 × 10^7
Engineering notation
6.4888921 × 10^6
Prime Factorization
31 × 29 × 89 × 811
Composite number
ω
Distinct Factors
4
Total number of distinct prime factors
Ω
Total Factors
4
Total number of prime factors
rad
Radical
64888921
Product of the distinct prime numbers
The prime factorization of 64888921 is 31 × 29 × 89 × 811.
Since it has a total of 4 prime factors.
1 , 10 , 47 , 28 , 345 , 219 , 5044 , 8572 , 48705 , 51496 , 537427 , 981611 , 2664390 , 6851704 , 12776303 , 51816925 , 121739369 , 398385110 , 8131110776 , 2578353321
n×2
129777842
n×3
194666763
n×4
259555684
n×5
324444605
n÷2
32444460.5
n÷3
21629640.333333
n÷3
16222230.25
n÷5
12977784.2
n2
4210572068544241
n3
2.7321947832057E+23
n4
1.7728917144405E+31
n5
1.1504103039988E+39
2 √n
8055.365975547
3 √n
401.84341029577
4 √n
89.751690655647
5 √n
36.511872864859
1 , 29 , 31 , 89 , 811 , 899 , 2581 , 2759 , 23519 , 25141 , 72179 , 80011 , 729089 , 2093191 , 2237549 , 64888921
16 divisors
τ
Total Divisors
16
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-64888920
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.0625
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
16
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 64888921 can be divided by 16 positive divisors.
The sum of these divisors (counting 64888921) is 1, the average is 0.0625.
Base
System
Value
2
Binary
11110111100010000001011001
3
Ternary
11112002200212101
4
Quaternary
3313202001121
5
Quinary
113102421141
6
Senary
10234443401
8
Octal
367420131
10
Decimal
64888921
12
Duodecimal
19893561
16
Hexadecimal
3de2059
20
Vigesimal
105b261
36
Base36
12msm1
md5
8e3717d61221131ab89731ca16965c46
sha1
b8e6920fd2c3682bddbbd0536509c1146493fcab
sha256
646afd31f39c68a74dc2757bb537602ee1027434499d4118ffc226f84cba67dd
sha512
0188bf0a525425197bad24b5348613f34a737cc6f342db0fc3b0605d6fb0aaa9b603c586b1668bf2e34029aad604d4c18dbaf6fe498ca745d89b7a036f8fe159
ripemd-160
48d4b3fef0b540d23d775a4d29d1b16dcd5194f2
Diameter
129777842
Circumference
407709115.02594
Area
1.3227902277949E+16
Volume
1.1444590745461E+24
Surface area
5.2911609111796E+16
Circumference
407709115.02594
Perimeter
259555684
Area
4210572068544241
Diagonal
91766792.125956
Surface area
25263432411265446
Volume
2.7321947832057E+23
Space diagonal
112390908.02032
Perimeter
194666763
Area
1.8232311879123E+15
Altitude
56195454.010162
Surface area
1.8232311879123E+15
Volume
3.2199224312121E+22
Height
30588930.708652