65981 (number)

65981 is an odd 5-digits prime number following 65980 and preceding 65982. In scientific notation, it is written as 6.5981 × 10^4. The sum of its digits is 29. It has a total of 1 prime factors and 2 positive divisors. There are 65980 positive integers (up to 65981) that are relatively prime to 65981.

Interesting facts

Basic properties

Name

Name sixty-five thousand nine hundred eighty-one

Notation

Scientific notation 6.5981 × 10^4
Engineering notation 6.5981 × 10^3

Prime Factorization of 65981

Prime Factorization 65981

Composite number
ω Distinct Factors 1
Total number of distinct prime factors
Ω Total Factors 1
Total number of prime factors
rad Radical 65981
Product of the distinct prime numbers

The prime factorization of 65981 is 65981. Since it has a total of 1 prime factors.

Most popular turbo-numbers

6, 4, 98, 48, 26, 642, 5568, 4313, 99059, 80664, 292446, 885167, 1402524, 331009, 71434730, 92338723, 500044538, 144237102, 8758263482, 3904179295

Basic calculations (n = 65981)

Multiplication

n×y
n×2 131962
n×3 197943
n×4 263924
n×5 329905

Division

n÷y
n÷2 32990.5
n÷3 21993.666666667
n÷3 16495.25
n÷5 13196.2

Exponentiation

ny
n2 4353492361
n3 287247779471141
n4 1.8952895737285E+19
n5 1.2505310136418E+24

Nth Root

y√n
2√n 256.86767021173
3√n 40.40852187644
4√n 16.027091757762
5√n 9.2020328366764

Divisors of 65981

1, 65981

2 divisors

τ Total Divisors 2
Total number of the positive divisors of n
σ Sum of Divisors 65982
Sum of all the positive divisors of n
s Aliquot Sum 1
Sum of the proper positive divisors of n
A Arithmetic Mean 32991
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 256.86961673191
Returns the nth root of the product of n divisors
H Harmonic Mean 1.999969688703
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 65981 can be divided by 2 positive divisors. The sum of these divisors (counting 65981) is 65982, the average is 32991.

Base conversion 65981

Base System Value
2 Binary 10000000110111101
3 Ternary 10100111202
4 Quaternary 100012331
5 Quinary 4102411
6 Senary 1225245
8 Octal 200675
10 Decimal 65981
12 Duodecimal 32225
16 Hexadecimal 101bd
20 Vigesimal 84j1
36 Base36 1ewt

Cryptographic Hash Functions

md5 1801803254d671f2ea754a94e56df59a
sha1 95adaf31da3243fad5914ea1c6d54676956cfe10
sha256 f0e25e6557350a6b6d92e5f9c8a2faccbb4753649bb1026eef976dae957acfb6
sha512 6a1b72612330621c5b0728fd42439b0592c8c3131f42354d58d52450306dc9848867629b4cf09fc8609901da01430a0fe3c8aafbcf8c268d0237715c70551cb0
ripemd-160 03c68baf371edf3b5d9f1cb08898f024f1358fe8

65981 as geometric shapes

Circle

Radius = n
Diameter 131962
Circumference 414570.84975302
Area 13676899618.777

Sphere

Radius = n
Volume 1.2032206849954E+15
Surface area 54707598475.108
Circumference 414570.84975302

Square

Length = n
Perimeter 263924
Area 4353492361
Diagonal 93311.225058939

Cube

Length = n
Surface area 26120954166
Volume 287247779471141
Space diagonal 114282.4443342

Equilateral Triangle

Length = n
Perimeter 197943
Area 1885117489.9037
Altitude 57141.222167101

Triangular Pyramid

Length = n
Surface area 1885117489.9037
Volume 33852475457470
Height 31103.741686313