18986979 (number)

18986979 is an odd 8-digits composite number following 18986978 and preceding 18986980. In scientific notation, it is written as 1.8986979 × 10^7. The sum of its digits is 57. It has a total of 4 prime factors and 16 positive divisors. There are 11472960 positive integers (up to 18986979) that are relatively prime to 18986979.

Interesting facts

Basic properties

Name

Name eighteen million nine hundred eighty-six thousand nine hundred seventy-nine

Notation

Scientific notation 1.8986979 × 10^7
Engineering notation 1.8986979 × 10^6

Prime Factorization of 18986979

Prime Factorization 3 × 11 × 457 × 1259

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 18986979
Product of the distinct prime numbers

The prime factorization of 18986979 is 3 × 11 × 457 × 1259. Since it has a total of 4 prime factors.

Most popular turbo-numbers

4, 6, 96, 75, 898, 496, 1133, 8929, 29487, 71525, 379608, 980613, 6181879, 2538265, 90896759, 99341526, 579449859, 561835894, 8586323107, 6034746613

Basic calculations (n = 18986979)

Multiplication

n×y
n×2 37973958
n×3 56960937
n×4 75947916
n×5 94934895

Division

n÷y
n÷2 9493489.5
n÷3 6328993
n÷3 4746744.75
n÷5 3797395.8

Exponentiation

ny
n2 360505371546441
n3 6.8449079189395E+21
n4 1.2996412291384E+29
n5 2.4676260725185E+36

Nth Root

y√n
2√n 4357.4050764188
3√n 266.7791943493
4√n 66.010643660085
5√n 28.555592384308

Divisors of 18986979

1, 3, 11, 33, 457, 1259, 1371, 3777, 5027, 13849, 15081, 41547, 575363, 1726089, 6328993, 18986979

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 -18986978
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 18986979 can be divided by 16 positive divisors. The sum of these divisors (counting 18986979) is 1, the average is 0.0625.

Base conversion 18986979

Base System Value
2 Binary 1001000011011011111100011
3 Ternary 1022201122020110
4 Quaternary 1020123133203
5 Quinary 14330040404
6 Senary 1514542403
8 Octal 110333743
10 Decimal 18986979
12 Duodecimal 6437a03
16 Hexadecimal 121b7e3
20 Vigesimal 5id78j
36 Base36 bayg3

Cryptographic Hash Functions

md5 5102e55b4eb4726d692aeb8cfcb0b13c
sha1 8b776649e39d5a68cc37d861eb0b797b8659c8f5
sha256 ce1676550a214391d1538e0e28960c788e71896ce1977bb4b49d5653428173c7
sha512 2f67a4e3a95f12aeab2b78976791759c399534df35574e7646f978fcbb9a11310868d1a935f1b689b6ee3bce0a7297f906afedec8ac7e65f6f6a1ebf063c8779
ripemd-160 521584629311049fd23f91c72b97383198272f81

18986979 as geometric shapes

Circle

Radius = n
Diameter 37973958
Circumference 119298707.48053
Area 1.13256102683E+15

Sphere

Radius = n
Volume 2.8671883243518E+22
Surface area 4.5302441073198E+15
Circumference 119298707.48053

Square

Length = n
Perimeter 75947916
Area 360505371546441
Diagonal 26851643.210293

Cube

Length = n
Surface area 2163032229278646
Volume 6.8449079189395E+21
Space diagonal 32886412.310243

Equilateral Triangle

Length = n
Perimeter 56960937
Area 1.5610340497998E+14
Altitude 16443206.155122

Triangular Pyramid

Length = n
Surface area 1.5610340497998E+14
Volume 8.066801343466E+20
Height 8950547.7367644