128439780 (number)

128439780 is an even 9-digits composite number following 128439779 and preceding 128439781. In scientific notation, it is written as 1.28439780 × 10^8. The sum of its digits is 42. It has a total of 7 prime factors and 72 positive divisors. There are 28986048 positive integers (up to 128439780) that are relatively prime to 128439780.

Interesting facts

Basic properties

Name

Name one hundred twenty-eight million four hundred thirty-nine thousand seven hundred eighty

Notation

Scientific notation 1.28439780 × 10^8
Engineering notation 1.28439780 × 10^6

Prime Factorization of 128439780

Prime Factorization 2 × 2 × 3 × 245 × 7 × 79 × 79

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 7
Total number of prime factors
rad Radical 812910
Product of the distinct prime numbers

The prime factorization of 128439780 is 2 × 2 × 3 × 245 × 7 × 79 × 79. Since it has a total of 7 prime factors.

Most popular turbo-numbers

6, 3, 10, 52, 933, 887, 2022, 9336, 66589, 65196, 98640, 696485, 9778263, 3932088, 7064824, 24392357, 662161648, 240900560, 4472708181, 2031919448

Basic calculations (n = 128439780)

Multiplication

n×y
n×2 256879560
n×3 385319340
n×4 513759120
n×5 642198900

Division

n÷y
n÷2 64219890
n÷3 42813260
n÷3 32109945
n÷5 25687956

Exponentiation

ny
n2 16496777086448400
n3 2.1188424196925E+24
n4 2.7214365423997E+32
n5 3.4954071078978E+40

Nth Root

y√n
2√n 11333.127547151
3√n 504.54493528364
4√n 106.45716296779
5√n 41.854283396316

Divisors of 128439780

1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 79, 84, 158, 237, 245, 316, 474, 490, 553, 735, 948, 980, 1106, 1470, 1659, 1715, 2212, 2940, 3318, 3430, 5145, 6241, 6636, 6860, 10290, 12482, 18723, 19355, 20580, 24964, 37446, 38710, 43687, 58065, 74892, 77420, 87374, 116130, 131061, 135485, 174748, 232260, 262122, 270970, 406455, 524244, 541940, 812910, 1529045, 1625820, 3058090, 4587135, 6116180, 9174270, 10703315, 18348540, 21406630, 32109945, 42813260, 64219890, 128439780

72 divisors

τ Total Divisors 72
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -128439779
Sum of the proper positive divisors of n
A Arithmetic Mean 0.013888888888889
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 72
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 128439780 can be divided by 72 positive divisors. The sum of these divisors (counting 128439780) is 1, the average is 0.013888888888889.

Base conversion 128439780

Base System Value
2 Binary 111101001111101010111100100
3 Ternary 22221200102020220
4 Quaternary 13221331113210
5 Quinary 230340033110
6 Senary 20424524340
8 Octal 751752744
10 Decimal 128439780
12 Duodecimal 370206b0
16 Hexadecimal 7a7d5e4
20 Vigesimal 202ej90
36 Base36 24gwro

Cryptographic Hash Functions

md5 8037323d32265e200ced41f344dd0282
sha1 46d2cf2509e0e64a3e0d39a950c60f5d7f76bec6
sha256 acd53ad1112fe821b1add202ab4cc10aea679ecd2c2869ba2c0c9bd7ae395a6a
sha512 1d11765f1177309a00dea337e750f91a82be1ed9392c39a5611dad82d94dfb0941ccbc0a1129d06cfcc114a32ca125fe51c4ecc238b9bf8a0b0c5b337e86a048
ripemd-160 756e45e81c1ea799f7e60ab79d222e2505a7f5fa

128439780 as geometric shapes

Circle

Radius = n
Diameter 256879560
Circumference 807010938.55338
Area 5.1826153702695E+16

Sphere

Radius = n
Volume 8.8753863730937E+24
Surface area 2.0730461481078E+17
Circumference 807010938.55338

Square

Length = n
Perimeter 513759120
Area 16496777086448400
Diagonal 181641278.82422

Cube

Length = n
Surface area 98980662518690400
Volume 2.1188424196925E+24
Space diagonal 222464224.67297

Equilateral Triangle

Length = n
Perimeter 385319340
Area 7.1433140187167E+15
Altitude 111232112.33648

Triangular Pyramid

Length = n
Surface area 7.1433140187167E+15
Volume 2.4970797387171E+23
Height 60547092.941406