1918921490 (number)

1918921490 is an even 10-digits composite number following 1918921489 and preceding 1918921491. In scientific notation, it is written as 1.918921490 × 10^9. The sum of its digits is 44. It has a total of 4 prime factors and 16 positive divisors. There are 767285040 positive integers (up to 1918921490) that are relatively prime to 1918921490.

Interesting facts

Basic properties

Name

Name one billion nine hundred eighteen million nine hundred twenty-one thousand four hundred ninety

Notation

Scientific notation 1.918921490 × 10^9
Engineering notation 1.918921490 × 10^9

Prime Factorization of 1918921490

Prime Factorization 2 × 5 × 68071 × 2819

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 1918921490
Product of the distinct prime numbers

The prime factorization of 1918921490 is 2 × 5 × 68071 × 2819. Since it has a total of 4 prime factors.

Most popular turbo-numbers

2, 2, 71, 78, 950, 541, 4870, 2733, 43654, 90655, 918886, 661127, 5962430, 9045482, 26114472, 97498693, 145659425, 651583728, 7406558109, 9444803598

Basic calculations (n = 1918921490)

Multiplication

n×y
n×2 3837842980
n×3 5756764470
n×4 7675685960
n×5 9594607450

Division

n÷y
n÷2 959460745
n÷3 639640496.66667
n÷3 479730372.5
n÷5 383784298

Exponentiation

ny
n2 3682259684783820100
n3 7.0659672408923E+27
n4 1.3559036386184E+37
n5 2.6018726305141E+46

Nth Root

y√n
2√n 43805.496116355
3√n 1242.6602378673
4√n 209.29762568256
5√n 71.880558245608

Divisors of 1918921490

1, 2, 5, 10, 2819, 5638, 14095, 28190, 68071, 136142, 340355, 680710, 191892149, 383784298, 959460745, 1918921490

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 -1918921489
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 1918921490 can be divided by 16 positive divisors. The sum of these divisors (counting 1918921490) is 1, the average is 0.0625.

Base conversion 1918921490

Base System Value
2 Binary 1110010011000000110101100010010
3 Ternary 11221201210022102022
4 Quaternary 1302120012230102
5 Quinary 12412220441430
6 Senary 514225051442
8 Octal 16230065422
10 Decimal 1918921490
12 Duodecimal 456786b82
16 Hexadecimal 72606b12
20 Vigesimal 19jd53ea
36 Base36 vqh5aq

Cryptographic Hash Functions

md5 a9c981fff876abafa6b0d1ff1a81b971
sha1 84d82d2afd2b01515def1e6c65092de51911e3ec
sha256 eae353b36bbc0a7057d280b5fa2601ac6c922b5281c44d1ee0a5baeabb3421be
sha512 2ff2922d8c84f34228a59b30e6df1d7822f6d247b85473ca1c01aff8c00c8451da734a1b8f4d65982a0c0ba1e32928e58c13e911a1b57a3059012bf82d2a8006
ripemd-160 44f97dfa28645d748179ae4117f97c9cbfeb7edf

1918921490 as geometric shapes

Circle

Radius = n
Diameter 3837842980
Circumference 12056939311.599
Area 1.1568159974327E+19

Sphere

Radius = n
Volume 2.9597854365991E+28
Surface area 4.6272639897307E+19
Circumference 12056939311.599

Square

Length = n
Perimeter 7675685960
Area 3682259684783820100
Diagonal 2713764796.2872

Cube

Length = n
Surface area 2.2093558108703E+19
Volume 7.0659672408923E+27
Space diagonal 3323669516.4158

Equilateral Triangle

Length = n
Perimeter 5756764470
Area 1.594465215177E+18
Altitude 1661834758.2079

Triangular Pyramid

Length = n
Surface area 1.594465215177E+18
Volume 8.3273222527949E+26
Height 904588265.42906