19809987 (number)

19809987 is an odd 8-digits composite number following 19809986 and preceding 19809988. In scientific notation, it is written as 1.9809987 × 10^7. The sum of its digits is 51. It has a total of 4 prime factors and 16 positive divisors. There are 12628224 positive integers (up to 19809987) that are relatively prime to 19809987.

Interesting facts

Basic properties

Name

Name nineteen million eight hundred nine thousand nine hundred eighty-seven

Notation

Scientific notation 1.9809987 × 10^7
Engineering notation 1.9809987 × 10^6

Prime Factorization of 19809987

Prime Factorization 3 × 29 × 109 × 2089

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 19809987
Product of the distinct prime numbers

The prime factorization of 19809987 is 3 × 29 × 109 × 2089. Since it has a total of 4 prime factors.

Most popular turbo-numbers

2, 7, 40, 48, 415, 223, 1544, 6426, 8554, 20548, 281099, 522514, 5194319, 1521608, 51235569, 45706220, 451084862, 479580609, 298510351, 9134834411

Basic calculations (n = 19809987)

Multiplication

n×y
n×2 39619974
n×3 59429961
n×4 79239948
n×5 99049935

Division

n÷y
n÷2 9904993.5
n÷3 6603329
n÷3 4952496.75
n÷5 3961997.4

Exponentiation

ny
n2 392435584940169
n3 7.7741438360021E+21
n4 1.5400568832733E+29
n5 3.0508506836905E+36

Nth Root

y√n
2√n 4450.8411564557
3√n 270.57940047788
4√n 66.714624756913
5√n 28.798962220667

Divisors of 19809987

1, 3, 29, 87, 109, 327, 2089, 3161, 6267, 9483, 60581, 181743, 227701, 683103, 6603329, 19809987

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 -19809986
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 19809987 can be divided by 16 positive divisors. The sum of these divisors (counting 19809987) is 1, the average is 0.0625.

Base conversion 19809987

Base System Value
2 Binary 1001011100100011011000011
3 Ternary 1101021110012020
4 Quaternary 1023210123003
5 Quinary 20032404422
6 Senary 1544332523
8 Octal 113443303
10 Decimal 19809987
12 Duodecimal 6774143
16 Hexadecimal 12e46c3
20 Vigesimal 63g4j7
36 Base36 bslhf

Cryptographic Hash Functions

md5 ae7a695cc0afe5b8f883815316ab2751
sha1 9299c0b3079475d8139406c44f5178e33989b155
sha256 5b83dc55ad6c02846839c456581e5afc0cdc2c9c3f0cf53fdd3cea2a89a0fb8e
sha512 4368a5a567a6368c97e363b85b3c178310f381c48bcf617d9f7a2a5bca618e3edc8945ec481be90c91f8772852984f6225412e516defc3571568b918cc1bc23a
ripemd-160 5f88405f97ef2784051b671b24d081a79055d278

19809987 as geometric shapes

Circle

Radius = n
Diameter 39619974
Circumference 124469819.25382
Area 1.2328727506552E+15

Sphere

Radius = n
Volume 3.2564257550846E+22
Surface area 4.931491002621E+15
Circumference 124469819.25382

Square

Length = n
Perimeter 79239948
Area 392435584940169
Diagonal 28015552.285835

Cube

Length = n
Surface area 2354613509641014
Volume 7.7741438360021E+21
Space diagonal 34311903.981279

Equilateral Triangle

Length = n
Perimeter 59429961
Area 1.699295929536E+14
Altitude 17155951.990639

Triangular Pyramid

Length = n
Surface area 1.699295929536E+14
Volume 9.1619163739279E+20
Height 9338517.4286116