21871738 (number)

21871738 is an even 8-digits composite number following 21871737 and preceding 21871739. In scientific notation, it is written as 2.1871738 × 10^7. The sum of its digits is 37. It has a total of 5 prime factors and 16 positive divisors. There are 9373308 positive integers (up to 21871738) that are relatively prime to 21871738.

Interesting facts

Basic properties

Name

Name twenty-one million eight hundred seventy-one thousand seven hundred thirty-eight

Notation

Scientific notation 2.1871738 × 10^7
Engineering notation 2.1871738 × 10^6

Prime Factorization of 21871738

Prime Factorization 2 × 7 × 7 × 7 × 31883

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 446362
Product of the distinct prime numbers

The prime factorization of 21871738 is 2 × 7 × 7 × 7 × 31883. Since it has a total of 5 prime factors.

Most popular turbo-numbers

1, 9, 19, 18, 221, 162, 3742, 682, 2652, 88064, 446191, 950356, 2986176, 1373736, 75820516, 10712360, 75383169, 342234154, 7970666511, 8403638095

Basic calculations (n = 21871738)

Multiplication

n×y
n×2 43743476
n×3 65615214
n×4 87486952
n×5 109358690

Division

n÷y
n÷2 10935869
n÷3 7290579.3333333
n÷3 5467934.5
n÷5 4374347.6

Exponentiation

ny
n2 478372923140644
n3 1.0462847241226E+22
n4 2.2884065359412E+29
n5 5.0051428191594E+36

Nth Root

y√n
2√n 4676.7229979976
3√n 279.6583332547
4√n 68.386570304393
5√n 29.37491773112

Divisors of 21871738

1, 2, 7, 14, 49, 98, 343, 686, 31883, 63766, 223181, 446362, 1562267, 3124534, 10935869, 21871738

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 -21871737
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 21871738 can be divided by 16 positive divisors. The sum of these divisors (counting 21871738) is 1, the average is 0.0625.

Base conversion 21871738

Base System Value
2 Binary 1010011011011110001111010
3 Ternary 1112011012101101
4 Quaternary 1103123301322
5 Quinary 21044343423
6 Senary 2100442014
8 Octal 123336172
10 Decimal 21871738
12 Duodecimal 73a930a
16 Hexadecimal 14dbc7a
20 Vigesimal 6gdj6i
36 Base36 d0sca

Cryptographic Hash Functions

md5 60fd30b4dbda4d21760f7469f14805aa
sha1 3ba277e86d134ec6abd008da517393855a458cf3
sha256 90dd4e9334db462b5400a9f0a2215437181fabf61646eb3f447b276bb15362f5
sha512 542e10d699ee182eb4e8ec94634ef234e127e21aeb11d09e17f5a97a3c9e2fbea351364e3e363c1a05b25b668b916f851fb96706b8da4d277d8992fb69c495e6
ripemd-160 69bf19dc6041dc3733e3b652c19be12459979d2f

21871738 as geometric shapes

Circle

Radius = n
Diameter 43743476
Circumference 137424182.84408
Area 1.5028528610149E+15

Sphere

Radius = n
Volume 4.3826672038225E+22
Surface area 6.0114114440597E+15
Circumference 137424182.84408

Square

Length = n
Perimeter 87486952
Area 478372923140644
Diagonal 30931308.512271

Cube

Length = n
Surface area 2870237538843864
Volume 1.0462847241226E+22
Space diagonal 37882961.465835

Equilateral Triangle

Length = n
Perimeter 65615214
Area 2.0714155196121E+14
Altitude 18941480.732917

Triangular Pyramid

Length = n
Surface area 2.0714155196121E+14
Volume 1.233058372465E+21
Height 10310436.170757