128921707 (number)

128921707 is an odd 9-digits composite number following 128921706 and preceding 128921708. In scientific notation, it is written as 1.28921707 × 10^8. The sum of its digits is 37. It has a total of 3 prime factors and 8 positive divisors. There are 121450824 positive integers (up to 128921707) that are relatively prime to 128921707.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 1.28921707 × 10^8
Engineering notation 1.28921707 × 10^6

Prime Factorization of 128921707

Prime Factorization 19 × 179 × 37907

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 128921707
Product of the distinct prime numbers

The prime factorization of 128921707 is 19 × 179 × 37907. Since it has a total of 3 prime factors.

Most popular turbo-numbers

9, 10, 28, 91, 733, 522, 5307, 9875, 34709, 2235, 445310, 283967, 8888312, 4717436, 61378351, 74358234, 317713901, 529885269, 8259943323, 9145388256

Basic calculations (n = 128921707)

Multiplication

n×y
n×2 257843414
n×3 386765121
n×4 515686828
n×5 644608535

Division

n÷y
n÷2 64460853.5
n÷3 42973902.333333
n÷3 32230426.75
n÷5 25784341.4

Exponentiation

ny
n2 16620806535793849
n3 2.1427827503113E+24
n4 2.7625120990029E+32
n5 3.561477754116E+40

Nth Root

y√n
2√n 11354.369511338
3√n 505.17519262236
4√n 106.5568839228
5√n 41.885645181106

Divisors of 128921707

1, 19, 179, 3401, 37907, 720233, 6785353, 128921707

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 -128921706
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 128921707 can be divided by 8 positive divisors. The sum of these divisors (counting 128921707) is 1, the average is 0.125.

Base conversion 128921707

Base System Value
2 Binary 111101011110011000001101011
3 Ternary 22222120220100001
4 Quaternary 13223303001223
5 Quinary 231000443312
6 Senary 20443123431
8 Octal 753630153
10 Decimal 128921707
12 Duodecimal 37213577
16 Hexadecimal 7af306b
20 Vigesimal 205f457
36 Base36 24r8mj

Cryptographic Hash Functions

md5 06ee6d2d93639a8782a40f11d0ffd57d
sha1 0f12439017d6bf10c4ff2746508c95963c4f8975
sha256 e2cd9952eae0ba742ddfea5934a4d4d4cfe3d1a6bc1d9dafa90f614e9c822a59
sha512 043799c0e3776330add00babb88be4d10908ec08a9284258ef9136489cfe41449cb28a0d7ac6ea35398c30800bcfc780d9be15078a237d3af2c9d52ec57d27e2
ripemd-160 ec435a6351b1a832ed89aa501694b27706d84287

128921707 as geometric shapes

Circle

Radius = n
Diameter 257843414
Circumference 810038975.19891
Area 5.2215803709587E+16

Sphere

Radius = n
Volume 8.9756673954892E+24
Surface area 2.0886321483835E+17
Circumference 810038975.19891

Square

Length = n
Perimeter 515686828
Area 16620806535793849
Diagonal 182322826.52369

Cube

Length = n
Surface area 99724839214763094
Volume 2.1427827503113E+24
Space diagonal 223298946.72251

Equilateral Triangle

Length = n
Perimeter 386765121
Area 7.197020345692E+15
Altitude 111649473.36125

Triangular Pyramid

Length = n
Surface area 7.197020345692E+15
Volume 2.5252936889245E+23
Height 60774275.507897