81938962 (number)

81938962 is an even 8-digits composite number following 81938961 and preceding 81938963. In scientific notation, it is written as 8.1938962 × 10^7. The sum of its digits is 46. It has a total of 4 prime factors and 16 positive divisors. There are 35038080 positive integers (up to 81938962) that are relatively prime to 81938962.

Interesting facts

Basic properties

Name

Name eighty-one million nine hundred thirty-eight thousand nine hundred sixty-two

Notation

Scientific notation 8.1938962 × 10^7
Engineering notation 8.1938962 × 10^6

Prime Factorization of 81938962

Prime Factorization 2 × 7 × 463 × 12641

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 81938962
Product of the distinct prime numbers

The prime factorization of 81938962 is 2 × 7 × 463 × 12641. Since it has a total of 4 prime factors.

Most popular turbo-numbers

Basic calculations (n = 81938962)

Multiplication

n×y
n×2 163877924
n×3 245816886
n×4 327755848
n×5 409694810

Division

n÷y
n÷2 40969481
n÷3 27312987.333333
n÷3 20484740.5
n÷5 16387792.4

Exponentiation

ny
n2 6713993493637444
n3 5.5013765774341E+23
n4 4.5077708632606E+31
n5 3.6936206546942E+39

Nth Root

y√n
2√n 9052.014250983
3√n 434.34032569688
4√n 95.14207403133
5√n 38.25587076087

Divisors of 81938962

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 -81938961
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 81938962 can be divided by 16 positive divisors. The sum of these divisors (counting 81938962) is 1, the average is 0.0625.

Base conversion 81938962

Base System Value
2 Binary 100111000100100101000010010
3 Ternary 12201011221010101
4 Quaternary 10320210220102
5 Quinary 131434021322
6 Senary 12044123014
8 Octal 470445022
10 Decimal 81938962
12 Duodecimal 2353646a
16 Hexadecimal 4e24a12
20 Vigesimal 15c2782
36 Base36 1cs8ia

Cryptographic Hash Functions

md5 deb43495a1de1d1faf99d8ffd3ecf9da
sha1 a4b7c44783a6d7bcbd0aafc8d1f5a80c9667fc34
sha256 cae682ba1ea5e59c29ba84de082e835b65f576c722b659f1eff9ad27506a5863
sha512 c6e936fc79ec95ae5efb56bb61376ae42b8fbd6111930398e77489ec15fd50e9cdab6b65458ec71692756d7bf78e8d41795d56792a5da0b7905857096eea7477
ripemd-160 80dd36eb567c1d3905375017e97acf3291ae3b0a

81938962 as geometric shapes

Circle

Radius = n
Diameter 163877924
Circumference 514837682.12395
Area 2.1092632635861E+16

Sphere

Radius = n
Volume 2.3044112320397E+24
Surface area 8.4370530543444E+16
Circumference 514837682.12395

Square

Length = n
Perimeter 327755848
Area 6713993493637444
Diagonal 115879191.34717

Cube

Length = n
Surface area 40283960961824664
Volume 5.5013765774341E+23
Space diagonal 141922445.30346

Equilateral Triangle

Length = n
Perimeter 245816886
Area 2.9072444631667E+15
Altitude 70961222.651728

Triangular Pyramid

Length = n
Surface area 2.9072444631667E+15
Volume 6.4834344729408E+22
Height 38626397.115725