64721881 (number)

64721881 is an odd 8-digits composite number following 64721880 and preceding 64721882. In scientific notation, it is written as 6.4721881 × 10^7. The sum of its digits is 37. It has a total of 4 prime factors and 16 positive divisors. There are 53323200 positive integers (up to 64721881) that are relatively prime to 64721881.

Interesting facts

Basic properties

Name

Name sixty-four million seven hundred twenty-one thousand eight hundred eighty-one

Notation

Scientific notation 6.4721881 × 10^7
Engineering notation 6.4721881 × 10^6

Prime Factorization of 64721881

Prime Factorization 7 × 29 × 277 × 1151

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 64721881
Product of the distinct prime numbers

The prime factorization of 64721881 is 7 × 29 × 277 × 1151. Since it has a total of 4 prime factors.

Most popular turbo-numbers

5, 9, 65, 97, 898, 779, 3502, 5421, 48483, 99835, 739560, 76827, 4507352, 8733661, 91430365, 65759059, 349432618, 222502549, 5821506376, 1416683847

Basic calculations (n = 64721881)

Multiplication

n×y
n×2 129443762
n×3 194165643
n×4 258887524
n×5 323609405

Division

n÷y
n÷2 32360940.5
n÷3 21573960.333333
n÷3 16180470.25
n÷5 12944376.2

Exponentiation

ny
n2 4188921880178161
n3 2.7111490344719E+23
n4 1.7547066518235E+31
n5 1.1356791510923E+39

Nth Root

y√n
2√n 8044.9910503368
3√n 401.49829948924
4√n 89.693874095932
5√n 36.493055375103

Divisors of 64721881

1, 7, 29, 203, 277, 1151, 1939, 8033, 8057, 33379, 56231, 233653, 318827, 2231789, 9245983, 64721881

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 -64721880
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 64721881 can be divided by 16 positive divisors. The sum of these divisors (counting 64721881) is 1, the average is 0.0625.

Base conversion 64721881

Base System Value
2 Binary 11110110111001001111011001
3 Ternary 11111210012201201
4 Quaternary 3312321033121
5 Quinary 113032100011
6 Senary 10231114201
8 Octal 366711731
10 Decimal 64721881
12 Duodecimal 19812961
16 Hexadecimal 3db93d9
20 Vigesimal 104a4e1
36 Base36 12j7q1

Cryptographic Hash Functions

md5 1dc5073ae577ce814374b545a028d22a
sha1 2d6d3de4f325fcd6d45f863cdbe3cc776be66278
sha256 272cc5e975486b64c8be302b4d504378cff0617b32b08fd17091af00687184ad
sha512 0b2d220c5a35785ac6ef43a24e4568099b9d75bd80d2335de507a2d1d713177c2e9984a7bbdca913f8b327f78acb1a147c73d7d18e0dae358cf7dc259ee98df8
ripemd-160 ce6a0008f036d32f00b83f72f453675c1f9163b3

64721881 as geometric shapes

Circle

Radius = n
Diameter 129443762
Circumference 406659571.75223
Area 1.3159886205229E+16

Sphere

Radius = n
Volume 1.1356434519312E+24
Surface area 5.2639544820917E+16
Circumference 406659571.75223

Square

Length = n
Perimeter 258887524
Area 4188921880178161
Diagonal 91530561.892498

Cube

Length = n
Surface area 25133531281068966
Volume 2.7111490344719E+23
Space diagonal 112101586.25343

Equilateral Triangle

Length = n
Perimeter 194165643
Area 1.8138563813514E+15
Altitude 56050793.126713

Triangular Pyramid

Length = n
Surface area 1.8138563813514E+15
Volume 3.1951197784707E+22
Height 30510187.297499