78131821 (number)

78131821 is an odd 8-digits prime number following 78131820 and preceding 78131822. In scientific notation, it is written as 7.8131821 × 10^7. The sum of its digits is 31. It has a total of 1 prime factors and 2 positive divisors. There are 78131820 positive integers (up to 78131821) that are relatively prime to 78131821.

Interesting facts

Basic properties

Name

Name seventy-eight million one hundred thirty-one thousand eight hundred twenty-one

Notation

Scientific notation 7.8131821 × 10^7
Engineering notation 7.8131821 × 10^6

Prime Factorization of 78131821

Prime Factorization 78131821

Composite number
ω Distinct Factors 1
Total number of distinct prime factors
Ω Total Factors 1
Total number of prime factors
rad Radical 78131821
Product of the distinct prime numbers

The prime factorization of 78131821 is 78131821. Since it has a total of 1 prime factors.

Most popular turbo-numbers

Basic calculations (n = 78131821)

Multiplication

n×y
n×2 156263642
n×3 234395463
n×4 312527284
n×5 390659105

Division

n÷y
n÷2 39065910.5
n÷3 26043940.333333
n÷3 19532955.25
n÷5 15626364.2

Exponentiation

ny
n2 6104581452776041
n3 4.7696206534822E+23
n4 3.7265914713577E+31
n5 2.9116537778025E+39

Nth Root

y√n
2√n 8839.2206104385
3√n 427.50642763611
4√n 94.017129345872
5√n 37.893575816626

Divisors of 78131821

2 divisors

τ Total Divisors 2
Total number of the positive divisors of n
σ Sum of Divisors 78131822
Sum of all the positive divisors of n
s Aliquot Sum 1
Sum of the proper positive divisors of n
A Arithmetic Mean 39065911
Returns the sum of divisors (σ(n)) divided by the total number of divisors (τ(n))
G Geometric Mean 8839.2206670045
Returns the nth root of the product of n divisors
H Harmonic Mean 1.9999999744022
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 78131821 can be divided by 2 positive divisors. The sum of these divisors (counting 78131821) is 78131822, the average is 39065911.

Base conversion 78131821

Base System Value
2 Binary 100101010000011001001101101
3 Ternary 12110000111201011
4 Quaternary 10222003021231
5 Quinary 130000204241
6 Senary 11430345221
8 Octal 452031155
10 Decimal 78131821
12 Duodecimal 221bb211
16 Hexadecimal 4a8326d
20 Vigesimal 14869b1
36 Base36 1aimwd

Cryptographic Hash Functions

md5 ba01b8cfac5e902e4f86149f7863a4e5
sha1 4289520aad7338ceb8991e2710a175385f276693
sha256 faba414059a55e106c3b58ea9ecc26ac6d1ef1f768b244f5ea6f59cdd142a342
sha512 2674b21ee20eec7f2a94c6d1ed415cfbe99b96f579d072be0db48f3beffb880a1191fd40f9215f54dd22e6dbceb58eb2dc57980a7b7bd49891009bc4a76cdb2f
ripemd-160 0f9682879df50d3bbccf67a94ff2686b739c2f21

78131821 as geometric shapes

Circle

Radius = n
Diameter 156263642
Circumference 490916709.73039
Area 1.9178108245282E+16

Sphere

Radius = n
Volume 1.9978940273853E+24
Surface area 7.6712432981127E+16
Circumference 490916709.73039

Square

Length = n
Perimeter 312527284
Area 6104581452776041
Diagonal 110495080.91111

Cube

Length = n
Surface area 36627488716656246
Volume 4.7696206534822E+23
Space diagonal 135328283.65988

Equilateral Triangle

Length = n
Perimeter 234395463
Area 2.6433613087877E+15
Altitude 67664141.829938

Triangular Pyramid

Length = n
Surface area 2.6433613087877E+15
Volume 5.6210518462744E+22
Height 36831693.637036