131978787 (number)

131978787 is an odd 9-digits composite number following 131978786 and preceding 131978788. In scientific notation, it is written as 1.31978787 × 10^8. The sum of its digits is 51. It has a total of 2 prime factors and 4 positive divisors. There are 87985856 positive integers (up to 131978787) that are relatively prime to 131978787.

Interesting facts

Basic properties

Name

Name one hundred thirty-one million nine hundred seventy-eight thousand seven hundred eighty-seven

Notation

Scientific notation 1.31978787 × 10^8
Engineering notation 1.31978787 × 10^6

Prime Factorization of 131978787

Prime Factorization 3 × 43992929

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 131978787
Product of the distinct prime numbers

The prime factorization of 131978787 is 3 × 43992929. Since it has a total of 2 prime factors.

Most popular turbo-numbers

7, 9, 50, 61, 522, 956, 3341, 3890, 60919, 36887, 159442, 833501, 7061249, 7959868, 5336959, 33918403, 369330332, 985928092, 3507983196, 1327397518

Basic calculations (n = 131978787)

Multiplication

n×y
n×2 263957574
n×3 395936361
n×4 527915148
n×5 659893935

Division

n÷y
n÷2 65989393.5
n÷3 43992929
n÷3 32994696.75
n÷5 26395757.4

Exponentiation

ny
n2 17418400217991369
n3 2.298859332251E+24
n4 3.0340066615412E+32
n5 4.0042451894013E+40

Nth Root

y√n
2√n 11488.202078654
3√n 509.13706049697
4√n 107.1830307402
5√n 42.082431628915

Divisors of 131978787

1, 3, 43992929, 131978787

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 -131978786
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 131978787 can be divided by 4 positive divisors. The sum of these divisors (counting 131978787) is 1, the average is 0.25.

Base conversion 131978787

Base System Value
2 Binary 111110111011101011000100011
3 Ternary 100012100012212020
4 Quaternary 13313131120203
5 Quinary 232241310122
6 Senary 21032432523
8 Octal 767353043
10 Decimal 131978787
12 Duodecimal 38248743
16 Hexadecimal 7ddd623
20 Vigesimal 214h6j7
36 Base36 26krhf

Cryptographic Hash Functions

md5 b4b6d6e16ce16685dc240bb4e5dd00ea
sha1 dab396b41e206eb587a4d2413b847b32b828f0a8
sha256 4d7e022b3981719caf564e0f1ad6b36ee7d995bbc19696ea54bb11946442bd0d
sha512 feb82d8518604c646674879a5bce3131103ad330a16b94f8e0d5f402c247a656113d54eef3df58a2fcea5ec4876af7c0008e4ff6cc4d70c95cbf7f50c8cf58d1
ripemd-160 6b4456c70e97152ac0497761a74c770692007b17

131978787 as geometric shapes

Circle

Radius = n
Diameter 263957574
Circumference 829247175.33778
Area 5.4721518162129E+16

Sphere

Radius = n
Volume 9.6294394531149E+24
Surface area 2.1888607264851E+17
Circumference 829247175.33778

Square

Length = n
Perimeter 527915148
Area 17418400217991369
Diagonal 186646190.52095

Cube

Length = n
Surface area 104510401307948214
Volume 2.298859332251E+24
Space diagonal 228593964.60531

Equilateral Triangle

Length = n
Perimeter 395936361
Area 7.5423885410325E+15
Altitude 114296982.30266

Triangular Pyramid

Length = n
Surface area 7.5423885410325E+15
Volume 2.7092317047145E+23
Height 62215396.840317