18993890 (number)

18993890 is an even 8-digits composite number following 18993889 and preceding 18993891. In scientific notation, it is written as 1.8993890 × 10^7. The sum of its digits is 47. It has a total of 4 prime factors and 16 positive divisors. There are 7569024 positive integers (up to 18993890) that are relatively prime to 18993890.

Interesting facts

Basic properties

Name

Name eighteen million nine hundred ninety-three thousand eight hundred ninety

Notation

Scientific notation 1.8993890 × 10^7
Engineering notation 1.8993890 × 10^6

Prime Factorization of 18993890

Prime Factorization 2 × 5 × 277 × 6857

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 18993890
Product of the distinct prime numbers

The prime factorization of 18993890 is 2 × 5 × 277 × 6857. Since it has a total of 4 prime factors.

Most popular turbo-numbers

9, 10, 6, 27, 342, 101, 4360, 9205, 35628, 37239, 746697, 450115, 1894530, 2656702, 43669975, 28576622, 739736548, 711408820, 1978645660, 2612916605

Basic calculations (n = 18993890)

Multiplication

n×y
n×2 37987780
n×3 56981670
n×4 75975560
n×5 94969450

Division

n÷y
n÷2 9496945
n÷3 6331296.6666667
n÷3 4748472.5
n÷5 3798778

Exponentiation

ny
n2 360767857332100
n3 6.8523849977016E+21
n4 1.3015344688399E+29
n5 2.4721202532354E+36

Nth Root

y√n
2√n 4358.1980221188
3√n 266.81155841245
4√n 66.016649582653
5√n 28.557670850529

Divisors of 18993890

1, 2, 5, 10, 277, 554, 1385, 2770, 6857, 13714, 34285, 68570, 1899389, 3798778, 9496945, 18993890

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 -18993889
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 18993890 can be divided by 16 positive divisors. The sum of these divisors (counting 18993890) is 1, the average is 0.0625.

Base conversion 18993890

Base System Value
2 Binary 1001000011101001011100010
3 Ternary 1022201222201102
4 Quaternary 1020131023202
5 Quinary 14330301030
6 Senary 1515034402
8 Octal 110351342
10 Decimal 18993890
12 Duodecimal 643ba02
16 Hexadecimal 121d2e2
20 Vigesimal 5ie4ea
36 Base36 bb3s2

Cryptographic Hash Functions

md5 7958ee8bead5345bdf5a3413221060ea
sha1 7f26ea445931e4895e3da1a07a0b6234c9e0771d
sha256 b6d20493c18a363a72e592a0b51bc872fb967f2339d85e12352dc75273d5a294
sha512 fc59d1b824bed731d62a9513bed7520a71197580b7253542210534a03b4e2a1531e4e2ce55e8cc3f4ef7f77019e47e9963324849b79b673bc7c45800839cb0df
ripemd-160 11136182f3c57c63d94c2efe20707074f491d131

18993890 as geometric shapes

Circle

Radius = n
Diameter 37987780
Circumference 119342130.57419
Area 1.1333856502459E+15

Sphere

Radius = n
Volume 2.8703203157798E+22
Surface area 4.5335426009834E+15
Circumference 119342130.57419

Square

Length = n
Perimeter 75975560
Area 360767857332100
Diagonal 26861416.840223

Cube

Length = n
Surface area 2164607143992600
Volume 6.8523849977016E+21
Space diagonal 32898382.513374

Equilateral Triangle

Length = n
Perimeter 56981670
Area 1.5621706465924E+14
Altitude 16449191.256687

Triangular Pyramid

Length = n
Surface area 1.5621706465924E+14
Volume 8.0756131652929E+20
Height 8953805.6134076