78421921 (number)

78421921 is an odd 8-digits prime number following 78421920 and preceding 78421922. In scientific notation, it is written as 7.8421921 × 10^7. The sum of its digits is 34. It has a total of 1 prime factors and 2 positive divisors. There are 78421920 positive integers (up to 78421921) that are relatively prime to 78421921.

Interesting facts

Basic properties

Name

Name seventy-eight million four hundred twenty-one thousand nine hundred twenty-one

Notation

Scientific notation 7.8421921 × 10^7
Engineering notation 7.8421921 × 10^6

Prime Factorization of 78421921

Prime Factorization 78421921

Composite number
ω Distinct Factors 1
Total number of distinct prime factors
Ω Total Factors 1
Total number of prime factors
rad Radical 78421921
Product of the distinct prime numbers

The prime factorization of 78421921 is 78421921. Since it has a total of 1 prime factors.

Most popular turbo-numbers

Basic calculations (n = 78421921)

Multiplication

n×y
n×2 156843842
n×3 235265763
n×4 313687684
n×5 392109605

Division

n÷y
n÷2 39210960.5
n÷3 26140640.333333
n÷3 19605480.25
n÷5 15684384.2

Exponentiation

ny
n2 6149997693330241
n3 4.8229463325653E+23
n4 3.7822471627967E+31
n5 2.9661108820332E+39

Nth Root

y√n
2√n 8855.6152242518
3√n 428.03487829719
4√n 94.104278458802
5√n 37.921673551918

Divisors of 78421921

2 divisors

τ Total Divisors 2
Total number of the positive divisors of n
σ Sum of Divisors 78421922
Sum of all the positive divisors of n
s Aliquot Sum 1
Sum of the proper positive divisors of n
A Arithmetic Mean 39210961
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 8855.6152807131
Returns the nth root of the product of n divisors
H Harmonic Mean 1.9999999744969
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 78421921 can be divided by 2 positive divisors. The sum of these divisors (counting 78421921) is 78421922, the average is 39210961.

Base conversion 78421921

Base System Value
2 Binary 100101011001001111110100001
3 Ternary 12110120020122121
4 Quaternary 10223021332201
5 Quinary 130034000141
6 Senary 11440504241
8 Octal 453117641
10 Decimal 78421921
12 Duodecimal 2231b081
16 Hexadecimal 4ac9fa1
20 Vigesimal 14a2eg1
36 Base36 1aouqp

Cryptographic Hash Functions

md5 5a0dc2c7b3e703197f5ddd8a59b305bc
sha1 cd29cea49b04509fbd8c74e7849b2e72a9d760c4
sha256 254043a1190f630899773b3d608c02b473e36ef2a547fb4033715dbb31c8233b
sha512 9d9f4277cebce8640661a15f4f174feb856b56bba86ef8ab6cc0fc946f7000467adf4cf999e56ecbabbc6d553de2db967f7fda98891bff809af090cff2b23a65
ripemd-160 241e383c0740fe3c86ca77f195b98f086e287f22

78421921 as geometric shapes

Circle

Radius = n
Diameter 156843842
Circumference 492739461.788
Area 1.932078757296E+16

Sphere

Radius = n
Volume 2.020231035606E+24
Surface area 7.7283150291842E+16
Circumference 492739461.788

Square

Length = n
Perimeter 313687684
Area 6149997693330241
Diagonal 110905344.26555

Cube

Length = n
Surface area 36899986159981446
Volume 4.8229463325653E+23
Space diagonal 135830751.59915

Equilateral Triangle

Length = n
Perimeter 235265763
Area 2.6630271178198E+15
Altitude 67915375.799576

Triangular Pyramid

Length = n
Surface area 2.6630271178198E+15
Volume 5.6838967617595E+22
Height 36968448.088517