77981421 (number)

77981421 is an odd 8-digits composite number following 77981420 and preceding 77981422. In scientific notation, it is written as 7.7981421 × 10^7. The sum of its digits is 39. It has a total of 3 prime factors and 8 positive divisors. There are 43804848 positive integers (up to 77981421) that are relatively prime to 77981421.

Interesting facts

Basic properties

Name

Name seventy-seven million nine hundred eighty-one thousand four hundred twenty-one

Notation

Scientific notation 7.7981421 × 10^7
Engineering notation 7.7981421 × 10^6

Prime Factorization of 77981421

Prime Factorization 177 × 7 × 62939

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 77981421
Product of the distinct prime numbers

The prime factorization of 77981421 is 177 × 7 × 62939. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 77981421)

Multiplication

n×y
n×2 155962842
n×3 233944263
n×4 311925684
n×5 389907105

Division

n÷y
n÷2 38990710.5
n÷3 25993807
n÷3 19495355.25
n÷5 15596284.2

Exponentiation

ny
n2 6081102021179241
n3 4.7421297685753E+23
n4 3.697980179199E+31
n5 2.8837374920377E+39

Nth Root

y√n
2√n 8830.7089749351
3√n 427.23194166159
4√n 93.971852035251
5√n 37.878975908228

Divisors of 77981421

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -77981420
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 77981421 can be divided by 8 positive divisors. The sum of these divisors (counting 77981421) is 1, the average is 0.125.

Base conversion 77981421

Base System Value
2 Binary 100101001011110011011101101
3 Ternary 12102201212101210
4 Quaternary 10221132123231
5 Quinary 124430401141
6 Senary 11423225033
8 Octal 451363355
10 Decimal 77981421
12 Duodecimal 22148179
16 Hexadecimal 4a5e6ed
20 Vigesimal 1477db1
36 Base36 1afeul

Cryptographic Hash Functions

md5 46486592d3af9631a0a7ba1559b19969
sha1 6de9c13ad7e4e0433a718c4edd190c2233e020a2
sha256 0b5e16cb0943515d9448ce06510888eaa9eea8c6271c7083e3bc8e9cc4c004f0
sha512 786329cc366ef24c1d9805d3b6ba565caa2ce3a8909f45cf54b1afd0f2e0d165714571f70921d607e69241c0bb523b0b09ae7d04b989ba2af225cce3a21b30ae
ripemd-160 3bd228865c867ae1458f57fde5a27204e0cdcd2a

77981421 as geometric shapes

Circle

Radius = n
Diameter 155962842
Circumference 489971718.66019
Area 1.9104345435467E+16

Sphere

Radius = n
Volume 1.9863786724434E+24
Surface area 7.6417381741867E+16
Circumference 489971718.66019

Square

Length = n
Perimeter 311925684
Area 6081102021179241
Diagonal 110282383.19133

Cube

Length = n
Surface area 36486612127075446
Volume 4.7421297685753E+23
Space diagonal 135067783.21842

Equilateral Triangle

Length = n
Perimeter 233944263
Area 2.6331944166731E+15
Altitude 67533891.609209

Triangular Pyramid

Length = n
Surface area 2.6331944166731E+15
Volume 5.5886535277103E+22
Height 36760794.397109