128540985 (number)

128540985 is an odd 9-digits composite number following 128540984 and preceding 128540986. In scientific notation, it is written as 1.28540985 × 10^8. The sum of its digits is 42. It has a total of 5 prime factors and 32 positive divisors. There are 64525248 positive integers (up to 128540985) that are relatively prime to 128540985.

Interesting facts

Basic properties

Name

Name one hundred twenty-eight million five hundred forty thousand nine hundred eighty-five

Notation

Scientific notation 1.28540985 × 10^8
Engineering notation 1.28540985 × 10^6

Prime Factorization of 128540985

Prime Factorization 19 × 3 × 5 × 163 × 2767

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 128540985
Product of the distinct prime numbers

The prime factorization of 128540985 is 19 × 3 × 5 × 163 × 2767. Since it has a total of 5 prime factors.

Most popular turbo-numbers

9, 7, 19, 48, 194, 577, 9445, 8948, 64848, 72335, 202147, 207504, 1369521, 6063852, 77695033, 79795657, 81516351, 544483722, 1869301293, 1327757123

Basic calculations (n = 128540985)

Multiplication

n×y
n×2 257081970
n×3 385622955
n×4 514163940
n×5 642704925

Division

n÷y
n÷2 64270492.5
n÷3 42846995
n÷3 32135246.25
n÷5 25708197

Exponentiation

ny
n2 16522784824770225
n3 2.123855036319E+24
n4 2.7300241836566E+32
n5 3.5091999764104E+40

Nth Root

y√n
2√n 11337.591675484
3√n 504.67742036568
4√n 106.47812768585
5√n 41.860877191963

Divisors of 128540985

1, 3, 5, 15, 19, 57, 95, 163, 285, 489, 815, 2445, 2767, 3097, 8301, 9291, 13835, 15485, 41505, 46455, 52573, 157719, 262865, 451021, 788595, 1353063, 2255105, 6765315, 8569399, 25708197, 42846995, 128540985

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 -128540984
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 128540985 can be divided by 32 positive divisors. The sum of these divisors (counting 128540985) is 1, the average is 0.03125.

Base conversion 128540985

Base System Value
2 Binary 111101010010110000100111001
3 Ternary 22221212120002020
4 Quaternary 13222112010321
5 Quinary 230401302420
6 Senary 20431025053
8 Octal 752260471
10 Decimal 128540985
12 Duodecimal 3706b189
16 Hexadecimal 7a96139
20 Vigesimal 2037c95
36 Base36 24j2ux

Cryptographic Hash Functions

md5 578efcc756ba94347cd660acbde8c67b
sha1 00cd97bf78a878f1e43350f3e48302ad2fbd42c4
sha256 92e7723da1f21c93a3c3acb2a7da96c58bf879a86e1ac16cec6b16d2b4b7accf
sha512 29ed225e5063466287735552d489ac8f8fb949555edfeb7340a0be2cc91e70fe60447b74562b1739e5ab80f106b8f0d4fec3a6b7d323982472d0b2d6954d1a8e
ripemd-160 a131f1d71f28ccc27e2a1671ae959216410b1759

128540985 as geometric shapes

Circle

Radius = n
Diameter 257081970
Circumference 807646828.32239
Area 5.1907859422343E+16

Sphere

Radius = n
Volume 8.8963831725193E+24
Surface area 2.0763143768937E+17
Circumference 807646828.32239

Square

Length = n
Perimeter 514163940
Area 16522784824770225
Diagonal 181784404.3078

Cube

Length = n
Surface area 99136708948621350
Volume 2.123855036319E+24
Space diagonal 222639516.87495

Equilateral Triangle

Length = n
Perimeter 385622955
Area 7.1545756997575E+15
Altitude 111319758.43747

Triangular Pyramid

Length = n
Surface area 7.1545756997575E+15
Volume 2.502987164064E+23
Height 60594801.435932