128974920 (number)

128974920 is an even 9-digits composite number following 128974919 and preceding 128974921. In scientific notation, it is written as 1.28974920 × 10^8. The sum of its digits is 42. It has a total of 7 prime factors and 64 positive divisors. There are 32361472 positive integers (up to 128974920) that are relatively prime to 128974920.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 1.28974920 × 10^8
Engineering notation 1.28974920 × 10^6

Prime Factorization of 128974920

Prime Factorization 2 × 2 × 2 × 3 × 85 × 17 × 3719

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 7
Total number of prime factors
rad Radical 32243730
Product of the distinct prime numbers

The prime factorization of 128974920 is 2 × 2 × 2 × 3 × 85 × 17 × 3719. Since it has a total of 7 prime factors.

Most popular turbo-numbers

2, 7, 66, 31, 369, 723, 6667, 2138, 73269, 97430, 830299, 194538, 9546586, 62719, 40167341, 75104379, 775592005, 856117261, 4857087128, 5365652802

Basic calculations (n = 128974920)

Multiplication

n×y
n×2 257949840
n×3 386924760
n×4 515899680
n×5 644874600

Division

n÷y
n÷2 64487460
n÷3 42991640
n÷3 32243730
n÷5 25794984

Exponentiation

ny
n2 16634529989006400
n3 2.1454371745697E+24
n4 2.7670758795515E+32
n5 3.5688339019909E+40

Nth Root

y√n
2√n 11356.712552495
3√n 505.24468748727
4√n 106.5678776766
5√n 41.889102307127

Divisors of 128974920

1, 2, 3, 4, 6, 8, 12, 17, 24, 34, 51, 68, 85, 102, 136, 170, 204, 255, 340, 408, 510, 680, 1020, 1445, 2040, 2890, 3719, 4335, 5780, 7438, 8670, 11157, 11560, 14876, 17340, 22314, 29752, 34680, 44628, 63223, 89256, 126446, 189669, 252892, 316115, 379338, 505784, 632230, 758676, 948345, 1264460, 1517352, 1896690, 2528920, 3793380, 5373955, 7586760, 10747910, 16121865, 21495820, 32243730, 42991640, 64487460, 128974920

64 divisors

τ Total Divisors 64
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -128974919
Sum of the proper positive divisors of n
A Arithmetic Mean 0.015625
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 64
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 128974920 can be divided by 64 positive divisors. The sum of these divisors (counting 128974920) is 1, the average is 0.015625.

Base conversion 128974920

Base System Value
2 Binary 111101100000000000001001000
3 Ternary 22222200121022220
4 Quaternary 13230000001020
5 Quinary 231004144140
6 Senary 20444214040
8 Octal 754000110
10 Decimal 128974920
12 Duodecimal 3723a320
16 Hexadecimal 7b00048
20 Vigesimal 2061h60
36 Base36 24sdoo

Cryptographic Hash Functions

md5 9b69c404dc2d6fa292410f8f935ad8db
sha1 65a00ca51d6ccb1a74ba42b656e2afb4475b6b65
sha256 e38ff96371228aab027766824bfc1f59c6571b0b8f764e5d77a3a1fc8bb3bb20
sha512 98627699186d0896f20587435e7ded5dc9ae83d952fe8e4e2c6170329d1ee230c241114865ba1e232655d7bf0e69f15c31122b28ea6070c8821b7bdd2dff13ad
ripemd-160 80c4d877928cf19ce37a17ff9f198673b169f900

128974920 as geometric shapes

Circle

Radius = n
Diameter 257949840
Circumference 810373322.33866
Area 5.2258917209382E+16

Sphere

Radius = n
Volume 8.9867862218222E+24
Surface area 2.0903566883753E+17
Circumference 810373322.33866

Square

Length = n
Perimeter 515899680
Area 16634529989006400
Diagonal 182398081.06998

Cube

Length = n
Surface area 99807179934038400
Volume 2.1454371745697E+24
Space diagonal 223391114.34213

Equilateral Triangle

Length = n
Perimeter 386924760
Area 7.2029627752468E+15
Altitude 111695557.17107

Triangular Pyramid

Length = n
Surface area 7.2029627752468E+15
Volume 2.5284219579132E+23
Height 60799360.356662