126987991 (number)

126987991 is an odd 9-digits composite number following 126987990 and preceding 126987992. In scientific notation, it is written as 1.26987991 × 10^8. The sum of its digits is 52. It has a total of 2 prime factors and 4 positive divisors. There are 112122912 positive integers (up to 126987991) that are relatively prime to 126987991.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 1.26987991 × 10^8
Engineering notation 1.26987991 × 10^6

Prime Factorization of 126987991

Prime Factorization 299 × 424709

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 126987991
Product of the distinct prime numbers

The prime factorization of 126987991 is 299 × 424709. Since it has a total of 2 prime factors.

Most popular turbo-numbers

8, 7, 36, 47, 264, 551, 4912, 1975, 94822, 93296, 54990, 254698, 2020620, 32223, 56964745, 74226736, 292011387, 532693236, 5672433283, 9639443425

Basic calculations (n = 126987991)

Multiplication

n×y
n×2 253975982
n×3 380963973
n×4 507951964
n×5 634939955

Division

n÷y
n÷2 63493995.5
n÷3 42329330.333333
n÷3 31746997.75
n÷5 25397598.2

Exponentiation

ny
n2 16125949858216081
n3 2.0478019754616E+24
n4 2.600462588297E+32
n5 3.302275197585E+40

Nth Root

y√n
2√n 11268.894843772
3√n 502.63672558127
4√n 106.15505095742
5√n 41.759234654997

Divisors of 126987991

1, 299, 424709, 126987991

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -126987990
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 126987991 can be divided by 4 positive divisors. The sum of these divisors (counting 126987991) is 1, the average is 0.25.

Base conversion 126987991

Base System Value
2 Binary 111100100011010111011010111
3 Ternary 22211221122202221
4 Quaternary 13210122323113
5 Quinary 230002103431
6 Senary 20333443211
8 Octal 744327327
10 Decimal 126987991
12 Duodecimal 36640507
16 Hexadecimal 791aed7
20 Vigesimal 1jdd9jb
36 Base36 23lsk7

Cryptographic Hash Functions

md5 d752dc462442369cda7bc83356b185a6
sha1 191326dd1d64cf4a19425f910fb4f197fe86d8d6
sha256 bc7a6c00a9256db0828d51c524681be360b607407358a88409664097e55ee568
sha512 833aff450a2567e566ee3507389759680fe45b4a66afdae119e3826f20ba129d3319dcd14b51e9cbe5724cba3c2dfb50ee639ee3e5de86d102d078615436789c
ripemd-160 7c53fb9b47df0cac365a53d3869fa7e162051906

126987991 as geometric shapes

Circle

Radius = n
Diameter 253975982
Circumference 797889079.23945
Area 5.0661165606729E+16

Sphere

Radius = n
Volume 8.5778128561557E+24
Surface area 2.0264466242692E+17
Circumference 797889079.23945

Square

Length = n
Perimeter 507951964
Area 16125949858216081
Diagonal 179588139.13071

Cube

Length = n
Surface area 96755699149296486
Volume 2.0478019754616E+24
Space diagonal 219949652.3631

Equilateral Triangle

Length = n
Perimeter 380963973
Area 6.9827411186846E+15
Altitude 109974826.18155

Triangular Pyramid

Length = n
Surface area 6.9827411186846E+15
Volume 2.4133577722935E+23
Height 59862713.043571