21991490 (number)

21991490 is an even 8-digits composite number following 21991489 and preceding 21991491. In scientific notation, it is written as 2.1991490 × 10^7. The sum of its digits is 35. It has a total of 5 prime factors and 32 positive divisors. There are 8515584 positive integers (up to 21991490) that are relatively prime to 21991490.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1991490 × 10^7
Engineering notation 2.1991490 × 10^6

Prime Factorization of 21991490

Prime Factorization 2 × 5 × 43 × 257 × 199

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 21991490
Product of the distinct prime numbers

The prime factorization of 21991490 is 2 × 5 × 43 × 257 × 199. Since it has a total of 5 prime factors.

Most popular turbo-numbers

7, 4, 8, 45, 821, 939, 11, 4735, 71595, 6148, 381775, 358935, 5143080, 8227759, 50967568, 30582530, 122245705, 238582483, 9619815965, 3733341032

Basic calculations (n = 21991490)

Multiplication

n×y
n×2 43982980
n×3 65974470
n×4 87965960
n×5 109957450

Division

n÷y
n÷2 10995745
n÷3 7330496.6666667
n÷3 5497872.5
n÷5 4398298

Exponentiation

ny
n2 483625632420100
n3 1.063564825911E+22
n4 2.3389375233374E+29
n5 5.14367211551E+36

Nth Root

y√n
2√n 4689.508503031
3√n 280.16779908074
4√n 68.479986149466
5√n 29.407014186496

Divisors of 21991490

1, 2, 5, 10, 43, 86, 199, 215, 257, 398, 430, 514, 995, 1285, 1990, 2570, 8557, 11051, 17114, 22102, 42785, 51143, 55255, 85570, 102286, 110510, 255715, 511430, 2199149, 4398298, 10995745, 21991490

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21991489
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21991490 can be divided by 32 positive divisors. The sum of these divisors (counting 21991490) is 1, the average is 0.03125.

Base conversion 21991490

Base System Value
2 Binary 1010011111001000001000010
3 Ternary 1112101021122122
4 Quaternary 1103321001002
5 Quinary 21112211430
6 Senary 2103204242
8 Octal 123710102
10 Decimal 21991490
12 Duodecimal 7446682
16 Hexadecimal 14f9042
20 Vigesimal 6h8iea
36 Base36 d3cqq

Cryptographic Hash Functions

md5 168ae53e58e44a8d0bdec249e30bcee4
sha1 05af231d6e8f083fe9e461a363c725bc3292af28
sha256 9080e698a6f31180073ee4fe7063a9a021d58ae790abec99814e50f1d8ba2eaa
sha512 6e1a89fe01c84dab51330ef43a0d1da55fb28c54d6087d9615efd191c678d58d57bf9e9e9896dc3d889b7270656eb94a4d83804deda9a891231d3d1cf8908c94
ripemd-160 fb5b75afdacd7922be98e2fca7fc7bbf6f26876a

21991490 as geometric shapes

Circle

Radius = n
Diameter 43982980
Circumference 138176606.85099
Area 1.5193547338987E+15

Sphere

Radius = n
Volume 4.4550499249315E+22
Surface area 6.0774189355948E+15
Circumference 138176606.85099

Square

Length = n
Perimeter 87965960
Area 483625632420100
Diagonal 31100663.414792

Cube

Length = n
Surface area 2901753794520600
Volume 1.063564825911E+22
Space diagonal 38090378.014143

Equilateral Triangle

Length = n
Perimeter 65974470
Area 2.0941604179856E+14
Altitude 19045189.007071

Triangular Pyramid

Length = n
Surface area 2.0941604179856E+14
Volume 1.253423167722E+21
Height 10366887.804931