78421915 (number)

78421915 is an odd 8-digits composite number following 78421914 and preceding 78421916. In scientific notation, it is written as 7.8421915 × 10^7. The sum of its digits is 37. It has a total of 5 prime factors and 28 positive divisors. There are 51754560 positive integers (up to 78421915) that are relatively prime to 78421915.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 7.8421915 × 10^7
Engineering notation 7.8421915 × 10^6

Prime Factorization of 78421915

Prime Factorization 5 × 11 × 143 × 767 × 13

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 78421915
Product of the distinct prime numbers

The prime factorization of 78421915 is 5 × 11 × 143 × 767 × 13. Since it has a total of 5 prime factors.

Most popular turbo-numbers

10, 10, 79, 22, 202, 409, 5105, 6993, 27225, 30347, 719669, 445237, 6871306, 1191701, 92865888, 27512732, 882834656, 72916907, 9279484923, 1291978698

Basic calculations (n = 78421915)

Multiplication

n×y
n×2 156843830
n×3 235265745
n×4 313687660
n×5 392109575

Division

n÷y
n÷2 39210957.5
n÷3 26140638.333333
n÷3 19605478.75
n÷5 15684383

Exponentiation

ny
n2 6149996752267225
n3 4.8229452255658E+23
n4 3.7822460052897E+31
n5 2.9661097473592E+39

Nth Root

y√n
2√n 8855.6148854837
3√n 428.03486738098
4√n 94.104276658841
5√n 37.921672971647

Divisors of 78421915

1, 5, 11, 13, 55, 65, 143, 715, 767, 1573, 1859, 3835, 7865, 8437, 9295, 9971, 20449, 42185, 49855, 102245, 109681, 548405, 1206491, 1425853, 6032455, 7129265, 15684383, 78421915

28 divisors

τ Total Divisors 28
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -78421914
Sum of the proper positive divisors of n
A Arithmetic Mean 0.035714285714286
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 28
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 78421915 can be divided by 28 positive divisors. The sum of these divisors (counting 78421915) is 1, the average is 0.035714285714286.

Base conversion 78421915

Base System Value
2 Binary 100101011001001111110011011
3 Ternary 12110120020122101
4 Quaternary 10223021332123
5 Quinary 130034000130
6 Senary 11440504231
8 Octal 453117633
10 Decimal 78421915
12 Duodecimal 2231b077
16 Hexadecimal 4ac9f9b
20 Vigesimal 14a2eff
36 Base36 1aouqj

Cryptographic Hash Functions

md5 858ba5f269713cec482ef586affc67a6
sha1 10e45fe15b477c97b0779ca0f710aecd07203473
sha256 81e63675e1537ebe997491004d6fd163d829a37f1b163d97d368b7653d2d494f
sha512 2af664450f37445580ae0933f5a62c04b0be84c5a931a08ca040d8a05cd44cb97eb20c7ec39d10ec8ae51c83f47019c30621b4d049b8c6d9bbe788fc1d54e63a
ripemd-160 5478aa6a27fe6c44df16824e291dda24a20be90e

78421915 as geometric shapes

Circle

Radius = n
Diameter 156843830
Circumference 492739424.08889
Area 1.9320784616524E+16

Sphere

Radius = n
Volume 2.0202305719071E+24
Surface area 7.7283138466095E+16
Circumference 492739424.08889

Square

Length = n
Perimeter 313687660
Area 6149996752267225
Diagonal 110905335.78027

Cube

Length = n
Surface area 36899980513603350
Volume 4.8229452255658E+23
Space diagonal 135830741.20685

Equilateral Triangle

Length = n
Perimeter 235265745
Area 2.6630267103276E+15
Altitude 67915370.603424

Triangular Pyramid

Length = n
Surface area 2.6630267103276E+15
Volume 5.6838954571481E+22
Height 36968445.26009