221281921 (number)

221281921 is an odd 9-digits composite number following 221281920 and preceding 221281922. In scientific notation, it is written as 2.21281921 × 10^8. The sum of its digits is 28. It has a total of 2 prime factors and 4 positive divisors. There are 189670212 positive integers (up to 221281921) that are relatively prime to 221281921.

Interesting facts

Basic properties

Name

Name two hundred twenty-one million two hundred eighty-one thousand nine hundred twenty-one

Notation

Scientific notation 2.21281921 × 10^8
Engineering notation 2.21281921 × 10^6

Prime Factorization of 221281921

Prime Factorization 7 × 31611703

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 221281921
Product of the distinct prime numbers

The prime factorization of 221281921 is 7 × 31611703. Since it has a total of 2 prime factors.

Most popular turbo-numbers

5, 1, 52, 29, 385, 994, 8074, 6645, 46086, 54423, 827821, 758055, 8402864, 4420409, 88345252, 10148478, 114136, 178938695, 966767302, 4586991672

Basic calculations (n = 221281921)

Multiplication

n×y
n×2 442563842
n×3 663845763
n×4 885127684
n×5 1106409605

Division

n÷y
n÷2 110640960.5
n÷3 73760640.333333
n÷3 55320480.25
n÷5 44256384.2

Exponentiation

ny
n2 48965688561450241
n3 1.0835221627965E+25
n4 2.3976386562969E+33
n5 5.3055408772925E+41

Nth Root

y√n
2√n 14875.547754621
3√n 604.85133610186
4√n 121.96535473084
5√n 46.664776121123

Divisors of 221281921

1, 7, 31611703, 221281921

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -221281920
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 221281921 can be divided by 4 positive divisors. The sum of these divisors (counting 221281921) is 1, the average is 0.25.

Base conversion 221281921

Base System Value
2 Binary 1101001100000111111010000001
3 Ternary 120102101021201201
4 Quaternary 31030013322001
5 Quinary 423122010141
6 Senary 33542501201
8 Octal 1514077201
10 Decimal 221281921
12 Duodecimal 62134801
16 Hexadecimal d307e81
20 Vigesimal 39304g1
36 Base36 3nqu81

Cryptographic Hash Functions

md5 64d0ef17d5cda19ce90aaf13a395858b
sha1 23073a7470124b6d2e4aa1ccf5470de21756dacc
sha256 4a6602d90103d44bdeda697a6e10dbf2af63d66addbbcbe3c8a1cfdb21554a68
sha512 004102607e05844ee9a0f50cb8fba109eb5e95049dcf5513161b314136c10dc974aa5db840bdce98a929c6ce53e5274f75c4c9e7fe7fc54e3a1f0be932e7c431
ripemd-160 3476fddac7fde888d2aedfd391bbc9efecd76156

221281921 as geometric shapes

Circle

Radius = n
Diameter 442563842
Circumference 1390355314.7717
Area 1.5383024746262E+17

Sphere

Radius = n
Volume 4.5386470221911E+25
Surface area 6.1532098985047E+17
Circumference 1390355314.7717

Square

Length = n
Perimeter 885127684
Area 48965688561450241
Diagonal 312939893.78617

Cube

Length = n
Surface area 293794131368701446
Volume 1.0835221627965E+25
Space diagonal 383271529.96844

Equilateral Triangle

Length = n
Perimeter 663845763
Area 2.1202765104007E+16
Altitude 191635764.98422

Triangular Pyramid

Length = n
Surface area 2.1202765104007E+16
Volume 1.2769431147989E+24
Height 104313297.92872