128207872 (number)

128207872 is an even 9-digits composite number following 128207871 and preceding 128207873. In scientific notation, it is written as 1.28207872 × 10^8. The sum of its digits is 37. It has a total of 12 prime factors and 44 positive divisors. There are 59166720 positive integers (up to 128207872) that are relatively prime to 128207872.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 1.28207872 × 10^8
Engineering notation 1.28207872 × 10^6

Prime Factorization of 128207872

Prime Factorization 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 13 × 9631

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 12
Total number of prime factors
rad Radical 250406
Product of the distinct prime numbers

The prime factorization of 128207872 is 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 2 × 13 × 9631. Since it has a total of 12 prime factors.

Most popular turbo-numbers

2, 6, 30, 21, 424, 395, 231, 8181, 84682, 78225, 620301, 991504, 1876139, 3696173, 92259573, 25778741, 24222273, 192957083, 3761884746, 1939815231

Basic calculations (n = 128207872)

Multiplication

n×y
n×2 256415744
n×3 384623616
n×4 512831488
n×5 641039360

Division

n÷y
n÷2 64103936
n÷3 42735957.333333
n÷3 32051968
n÷5 25641574.4

Exponentiation

ny
n2 16437258442768384
n3 2.1073859264614E+24
n4 2.7018346511436E+32
n5 3.4639647111898E+40

Nth Root

y√n
2√n 11322.891503499
3√n 504.24108731192
4√n 106.40907622707
5√n 41.839158236524

Divisors of 128207872

1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 256, 416, 512, 832, 1024, 1664, 3328, 6656, 9631, 13312, 19262, 38524, 77048, 125203, 154096, 250406, 308192, 500812, 616384, 1001624, 1232768, 2003248, 2465536, 4006496, 4931072, 8012992, 9862144, 16025984, 32051968, 64103936, 128207872

44 divisors

τ Total Divisors 44
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -128207871
Sum of the proper positive divisors of n
A Arithmetic Mean 0.022727272727273
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 44
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 128207872 can be divided by 44 positive divisors. The sum of these divisors (counting 128207872) is 1, the average is 0.022727272727273.

Base conversion 128207872

Base System Value
2 Binary 111101001000100110000000000
3 Ternary 22221020122010201
4 Quaternary 13221010300000
5 Quinary 230310122442
6 Senary 20415534544
8 Octal 751046000
10 Decimal 128207872
12 Duodecimal 36b2a454
16 Hexadecimal 7a44c00
20 Vigesimal 2015jdc
36 Base36 24bxts

Cryptographic Hash Functions

md5 bde745b4ef885bab6680144ffbed185d
sha1 61b6802d662474a6b42f01d5e311a5d7cb6d254e
sha256 91fe939f65f78eb95b16a71447e45db5cbea4a612807b6a9e4ca8d789f7adcc3
sha512 3d54716475b0e861f3b725e0b3e9b2beda54f9e5df27818d5d84f3dc6e82d55f47a943c166f9b42cfd7a26cfa2458511ea574020833d708c2c2723a41d32d780
ripemd-160 1b7efd88e9a0d17b4caa1eb6ad4997bab5fd3115

128207872 as geometric shapes

Circle

Radius = n
Diameter 256415744
Circumference 805553817.61516
Area 5.1639170368958E+16

Sphere

Radius = n
Volume 8.8273975264661E+24
Surface area 2.0655668147583E+17
Circumference 805553817.61516

Square

Length = n
Perimeter 512831488
Area 16437258442768384
Diagonal 181313311.38539

Cube

Length = n
Surface area 98623550656610304
Volume 2.1073859264614E+24
Space diagonal 222062548.23429

Equilateral Triangle

Length = n
Perimeter 384623616
Area 7.1175416900038E+15
Altitude 111031274.11714

Triangular Pyramid

Length = n
Surface area 7.1175416900038E+15
Volume 2.4835781319632E+23
Height 60437770.461798