21461921 (number)

21461921 is an odd 8-digits composite number following 21461920 and preceding 21461922. In scientific notation, it is written as 2.1461921 × 10^7. The sum of its digits is 26. It has a total of 4 prime factors and 16 positive divisors. There are 18796800 positive integers (up to 21461921) that are relatively prime to 21461921.

Interesting facts

Basic properties

Name

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

Notation

Scientific notation 2.1461921 × 10^7
Engineering notation 2.1461921 × 10^6

Prime Factorization of 21461921

Prime Factorization 13 × 23 × 401 × 179

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21461921
Product of the distinct prime numbers

The prime factorization of 21461921 is 13 × 23 × 401 × 179. Since it has a total of 4 prime factors.

Most popular turbo-numbers

9, 9, 23, 61, 698, 206, 5131, 6945, 74807, 75048, 773221, 487863, 2035121, 7163271, 83214163, 64560260, 88939871, 152283981, 8359325836, 1471029991

Basic calculations (n = 21461921)

Multiplication

n×y
n×2 42923842
n×3 64385763
n×4 85847684
n×5 107309605

Division

n÷y
n÷2 10730960.5
n÷3 7153973.6666667
n÷3 5365480.25
n÷5 4292384.2

Exponentiation

ny
n2 460614053010241
n3 9.8856624171956E+21
n4 2.1216530583052E+29
n5 4.5534750326755E+36

Nth Root

y√n
2√n 4632.7012638416
3√n 277.90062956395
4√n 68.06394981076
5√n 29.264002038504

Divisors of 21461921

1, 13, 23, 179, 299, 401, 2327, 4117, 5213, 9223, 53521, 71779, 119899, 933127, 1650917, 21461921

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 -21461920
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 21461921 can be divided by 16 positive divisors. The sum of these divisors (counting 21461921) is 1, the average is 0.0625.

Base conversion 21461921

Base System Value
2 Binary 1010001110111101110100001
3 Ternary 1111101101012222
4 Quaternary 1101313232201
5 Quinary 20443240141
6 Senary 2044000425
8 Octal 121675641
10 Decimal 21461921
12 Duodecimal 7230115
16 Hexadecimal 1477ba1
20 Vigesimal 6e2eg1
36 Base36 cs04h

Cryptographic Hash Functions

md5 fce6f300459abef724c9caf4ee3f24e7
sha1 7dd9c70c0339c17a07da7fab43f54186ad1e461c
sha256 a2a18c3ee4185bfa331e1f314924c37af69c5c125cef01f4be361d218ff84e11
sha512 75c7b78cd4db8bc0b9fb2ca072aea99c4c8c3fb720cea4717b5abedeedf0866bb347b6fd268119d74ea28e91e2102dca1bfd8ea40f65d4ba444ac17ba483d2a3
ripemd-160 08d0bef2e5bef6d991aa5966d971dc0b1a32b590

21461921 as geometric shapes

Circle

Radius = n
Diameter 42923842
Circumference 134849226.69105
Area 1.4470617250772E+15

Sphere

Radius = n
Volume 4.1408965900974E+22
Surface area 5.7882469003088E+15
Circumference 134849226.69105

Square

Length = n
Perimeter 85847684
Area 460614053010241
Diagonal 30351739.75278

Cube

Length = n
Surface area 2763684318061446
Volume 9.8856624171956E+21
Space diagonal 37173137.600029

Equilateral Triangle

Length = n
Perimeter 64385763
Area 1.9945173562349E+14
Altitude 18586568.800015

Triangular Pyramid

Length = n
Surface area 1.9945173562349E+14
Volume 1.16503648862E+21
Height 10117246.58426