78820721 (number)

78820721 is an odd 8-digits composite number following 78820720 and preceding 78820722. In scientific notation, it is written as 7.8820721 × 10^7. The sum of its digits is 35. It has a total of 5 prime factors and 32 positive divisors. There are 59270400 positive integers (up to 78820721) that are relatively prime to 78820721.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 7.8820721 × 10^7
Engineering notation 7.8820721 × 10^6

Prime Factorization of 78820721

Prime Factorization 17 × 19 × 7 × 71 × 491

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 78820721
Product of the distinct prime numbers

The prime factorization of 78820721 is 17 × 19 × 7 × 71 × 491. Since it has a total of 5 prime factors.

Most popular turbo-numbers

6, 6, 60, 74, 661, 489, 4634, 8726, 41910, 9602, 596424, 129926, 2786235, 635446, 10258616, 60682507, 417672593, 803777385, 3402188083, 7034785657

Basic calculations (n = 78820721)

Multiplication

n×y
n×2 157641442
n×3 236462163
n×4 315282884
n×5 394103605

Division

n÷y
n÷2 39410360.5
n÷3 26273573.666667
n÷3 19705180.25
n÷5 15764144.2

Exponentiation

ny
n2 6212706058959841
n3 4.8968997092828E+23
n4 3.8597716575036E+31
n5 3.042299849398E+39

Nth Root

y√n
2√n 8878.1034573832
3√n 428.75921560486
4√n 94.223688408931
5√n 37.960164051367

Divisors of 78820721

1, 7, 17, 19, 71, 119, 133, 323, 491, 497, 1207, 1349, 2261, 3437, 8347, 8449, 9329, 9443, 22933, 34861, 58429, 65303, 158593, 160531, 244027, 592637, 662359, 1110151, 4148459, 4636513, 11260103, 78820721

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -78820720
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 78820721 can be divided by 32 positive divisors. The sum of these divisors (counting 78820721) is 1, the average is 0.03125.

Base conversion 78820721

Base System Value
2 Binary 100101100101011010101110001
3 Ternary 12111022111200222
4 Quaternary 10230223111301
5 Quinary 130134230341
6 Senary 11453222425
8 Octal 454532561
10 Decimal 78820721
12 Duodecimal 22491a15
16 Hexadecimal 4b2b571
20 Vigesimal 14ccbg1
36 Base36 1axegh

Cryptographic Hash Functions

md5 a096d37e84815545af664b3148105c06
sha1 9f4b57d84b277d637b1c0af276fc0a9aba00cf01
sha256 ecf024c2fbfd023a70be3e424b920a3463698bb06b52fdb157786da9a34bac2b
sha512 81193e3debfbfdc427f5e55a6f3a6891fde074613b0542777559f33079dad265804fd90ffbdab96b8304897a5b7c2086d3ab06d2b38d666dfd76fc4e486ba47f
ripemd-160 4ad8ff448c76d8c41e0dd67f3ac253b91acc53d6

78820721 as geometric shapes

Circle

Radius = n
Diameter 157641442
Circumference 495245196.0885
Area 1.9517791713741E+16

Sphere

Radius = n
Volume 2.0512085536065E+24
Surface area 7.8071166854964E+16
Circumference 495245196.0885

Square

Length = n
Perimeter 315282884
Area 6212706058959841
Diagonal 111469332.63423

Cube

Length = n
Surface area 37276236353759046
Volume 4.8968997092828E+23
Space diagonal 136521493.46121

Equilateral Triangle

Length = n
Perimeter 236462163
Area 2.6901806366524E+15
Altitude 68260746.730606

Triangular Pyramid

Length = n
Surface area 2.6901806366524E+15
Volume 5.7710516520405E+22
Height 37156444.211409