21981570 (number)

21981570 is an even 8-digits composite number following 21981569 and preceding 21981571. In scientific notation, it is written as 2.1981570 × 10^7. The sum of its digits is 33. It has a total of 5 prime factors and 32 positive divisors. There are 5361408 positive integers (up to 21981570) that are relatively prime to 21981570.

Interesting facts

Basic properties

Name

Name twenty-one million nine hundred eighty-one thousand five hundred seventy

Notation

Scientific notation 2.1981570 × 10^7
Engineering notation 2.1981570 × 10^6

Prime Factorization of 21981570

Prime Factorization 2 × 15 × 13 × 157 × 359

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 21981570
Product of the distinct prime numbers

The prime factorization of 21981570 is 2 × 15 × 13 × 157 × 359. Since it has a total of 5 prime factors.

Most popular turbo-numbers

3, 2, 96, 48, 424, 466, 5370, 5394, 42166, 51433, 617214, 351308, 1242179, 482215, 78703438, 70601501, 873470349, 294985063, 2962152862, 1513329320

Basic calculations (n = 21981570)

Multiplication

n×y
n×2 43963140
n×3 65944710
n×4 87926280
n×5 109907850

Division

n÷y
n÷2 10990785
n÷3 7327190
n÷3 5495392.5
n÷5 4396314

Exponentiation

ny
n2 483189419664900
n3 1.0621262051623E+22
n4 2.334720152761E+29
n5 5.1320814468327E+36

Nth Root

y√n
2√n 4688.4507035907
3√n 280.12566638054
4√n 68.472262293506
5√n 29.404360703439

Divisors of 21981570

1, 2, 13, 15, 26, 30, 157, 195, 314, 359, 390, 718, 2041, 2355, 4082, 4667, 4710, 5385, 9334, 10770, 30615, 56363, 61230, 70005, 112726, 140010, 732719, 845445, 1465438, 1690890, 10990785, 21981570

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 -21981569
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 21981570 can be divided by 32 positive divisors. The sum of these divisors (counting 21981570) is 1, the average is 0.03125.

Base conversion 21981570

Base System Value
2 Binary 1010011110110100110000010
3 Ternary 1112100210001020
4 Quaternary 1103312212002
5 Quinary 21111402240
6 Senary 2103050310
8 Octal 123664602
10 Decimal 21981570
12 Duodecimal 7440996
16 Hexadecimal 14f6982
20 Vigesimal 6h7dia
36 Base36 d3536

Cryptographic Hash Functions

md5 130014138de535fe9b248734c887c0c6
sha1 0e4e89e873f9c3c673f8fca264eb4134e32c4a72
sha256 c05204f526cc2c013f81885c44d900b84521858fb3e6cc878bea298ba34f4c3c
sha512 a7d3d7d48cbc94cb75fafc5feac50487ba7a7356bcf5904a47fd9bea1c13d743344c2673a8f23b81435208f2bed0e5f928a3b5afbc5b8d24d5f5d3c29d7cb1cc
ripemd-160 1c22fd6e268c3736088cb2010056e7b1c6e6b0a2

21981570 as geometric shapes

Circle

Radius = n
Diameter 43963140
Circumference 138114277.65274
Area 1.5179843311116E+15

Sphere

Radius = n
Volume 4.4490238444309E+22
Surface area 6.0719373244463E+15
Circumference 138114277.65274

Square

Length = n
Perimeter 87926280
Area 483189419664900
Diagonal 31086634.416254

Cube

Length = n
Surface area 2899136517989400
Volume 1.0621262051623E+22
Space diagonal 38073196.070132

Equilateral Triangle

Length = n
Perimeter 65944710
Area 2.0922715613483E+14
Altitude 19036598.035066

Triangular Pyramid

Length = n
Surface area 2.0922715613483E+14
Volume 1.2517277369104E+21
Height 10362211.472085