64697981 (number)

64697981 is an odd 8-digits prime number following 64697980 and preceding 64697982. In scientific notation, it is written as 6.4697981 × 10^7. The sum of its digits is 50. It has a total of 1 prime factors and 2 positive divisors. There are 64697980 positive integers (up to 64697981) that are relatively prime to 64697981.

Interesting facts

Basic properties

Name

Name sixty-four million six hundred ninety-seven thousand nine hundred eighty-one

Notation

Scientific notation 6.4697981 × 10^7
Engineering notation 6.4697981 × 10^6

Prime Factorization of 64697981

Prime Factorization 64697981

Composite number
ω Distinct Factors 1
Total number of distinct prime factors
Ω Total Factors 1
Total number of prime factors
rad Radical 64697981
Product of the distinct prime numbers

The prime factorization of 64697981 is 64697981. Since it has a total of 1 prime factors.

Most popular turbo-numbers

Basic calculations (n = 64697981)

Multiplication

n×y
n×2 129395962
n×3 194093943
n×4 258791924
n×5 323489905

Division

n÷y
n÷2 32348990.5
n÷3 21565993.666667
n÷3 16174495.25
n÷5 12939596.2

Exponentiation

ny
n2 4185828745476361
n3 2.7081466864408E+23
n4 1.7521162286456E+31
n5 1.1335838247071E+39

Nth Root

y√n
2√n 8043.5055168751
3√n 401.44887266682
4√n 89.685592582505
5√n 36.490359801773

Divisors of 64697981

2 divisors

τ Total Divisors 2
Total number of the positive divisors of n
σ Sum of Divisors 64697982
Sum of all the positive divisors of n
s Aliquot Sum 1
Sum of the proper positive divisors of n
A Arithmetic Mean 32348991
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 8043.505579037
Returns the nth root of the product of n divisors
H Harmonic Mean 1.9999999690871
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 64697981 can be divided by 2 positive divisors. The sum of these divisors (counting 64697981) is 64697982, the average is 32348991.

Base conversion 64697981

Base System Value
2 Binary 11110110110011011001111101
3 Ternary 11111201222221112
4 Quaternary 3312303121331
5 Quinary 113030313411
6 Senary 10230411405
8 Octal 366633175
10 Decimal 64697981
12 Duodecimal 19800b65
16 Hexadecimal 3db367d
20 Vigesimal 10474j1
36 Base36 12ipa5

Cryptographic Hash Functions

md5 0c03dfa065090a1cec1eedcc18c7f873
sha1 f11420d46f3cea022536ed8286e112713d625185
sha256 df6dc5efc7bef7948bc282a447b72ad93900d480e578526a5ed8cfbe34018b0e
sha512 6929293bbe9bce0c99173482f5560804e639318f1f1879d1a92c6b78d42b58a4421de0e06f1f53801fe7f306ba9df0341c060ec715d56114479f19f6d3573a80
ripemd-160 8901445add23e4f3479d8467ca6d8b2fd2cc44ae

64697981 as geometric shapes

Circle

Radius = n
Diameter 129395962
Circumference 406509403.62338
Area 1.3150168835974E+16

Sphere

Radius = n
Volume 1.1343858313288E+24
Surface area 5.2600675343894E+16
Circumference 406509403.62338

Square

Length = n
Perimeter 258791924
Area 4185828745476361
Diagonal 91496762.188357

Cube

Length = n
Surface area 25114972472858166
Volume 2.7081466864408E+23
Space diagonal 112060190.23913

Equilateral Triangle

Length = n
Perimeter 194093943
Area 1.8125170147368E+15
Altitude 56030095.119563

Triangular Pyramid

Length = n
Surface area 1.8125170147368E+15
Volume 3.1915814773837E+22
Height 30498920.729452