129487986 (number)

129487986 is an even 9-digits composite number following 129487985 and preceding 129487987. In scientific notation, it is written as 1.29487986 × 10^8. The sum of its digits is 54. It has a total of 4 prime factors and 16 positive divisors. There are 43049376 positive integers (up to 129487986) that are relatively prime to 129487986.

Interesting facts

Basic properties

Name

Name one hundred twenty-nine million four hundred eighty-seven thousand nine hundred eighty-six

Notation

Scientific notation 1.29487986 × 10^8
Engineering notation 1.29487986 × 10^6

Prime Factorization of 129487986

Prime Factorization 2 × 9 × 389 × 18493

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 129487986
Product of the distinct prime numbers

The prime factorization of 129487986 is 2 × 9 × 389 × 18493. Since it has a total of 4 prime factors.

Most popular turbo-numbers

4, 10, 27, 46, 660, 259, 1895, 7794, 45861, 17683, 455799, 78673, 7186971, 8198729, 91327025, 59505184, 305252497, 435613900, 8113197889, 4111591569

Basic calculations (n = 129487986)

Multiplication

n×y
n×2 258975972
n×3 388463958
n×4 517951944
n×5 647439930

Division

n÷y
n÷2 64743993
n÷3 43162662
n÷3 32371996.5
n÷5 25897597.2

Exponentiation

ny
n2 16767138518336196
n3 2.1711429977224E+24
n4 2.8113693409307E+32
n5 3.6403855385927E+40

Nth Root

y√n
2√n 11379.278799643
3√n 505.9137604489
4√n 106.67370247462
5√n 41.922376617266

Divisors of 129487986

1, 2, 9, 18, 389, 778, 3501, 7002, 18493, 36986, 166437, 332874, 7193777, 14387554, 64743993, 129487986

16 divisors

τ Total Divisors 16
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -129487985
Sum of the proper positive divisors of n
A Arithmetic Mean 0.0625
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 16
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 129487986 can be divided by 16 positive divisors. The sum of these divisors (counting 129487986) is 1, the average is 0.0625.

Base conversion 129487986

Base System Value
2 Binary 111101101111101010001110010
3 Ternary 100000122200010100
4 Quaternary 13231331101302
5 Quinary 231122103421
6 Senary 20503213230
8 Octal 755752162
10 Decimal 129487986
12 Duodecimal 37447216
16 Hexadecimal 7b7d472
20 Vigesimal 2095jj6
36 Base36 253dki

Cryptographic Hash Functions

md5 12b0e224845dc1796cb2ab6f0b642c74
sha1 f0f6849972c51edb11425b8f8982c0bb0fc1c4b1
sha256 9ee89fc72ed197a36d9df7a4bf2326931e3f7c5879ee27d9842ed8c8f84745bc
sha512 96f493dfcc1035059d5132902bfd84d04ed1e4452f5a9264c70211cb148f1a43f7ea2be7b292232472e17a08173710f61004e97405fcd3c8f2120047c0673194
ripemd-160 4ecfe4221881494ec3fcd5cd275c55508d42f61c

129487986 as geometric shapes

Circle

Radius = n
Diameter 258975972
Circumference 813597011.09148
Area 5.2675519190927E+16

Sphere

Radius = n
Volume 9.0944625220501E+24
Surface area 2.1070207676371E+17
Circumference 813597011.09148

Square

Length = n
Perimeter 517951944
Area 16767138518336196
Diagonal 183123665.96558

Cube

Length = n
Surface area 100602831110017176
Volume 2.1711429977224E+24
Space diagonal 224279770.72177

Equilateral Triangle

Length = n
Perimeter 388463958
Area 7.2603839528259E+15
Altitude 112139885.36088

Triangular Pyramid

Length = n
Surface area 7.2603839528259E+15
Volume 2.5587165610253E+23
Height 61041221.988526