21291255 (number)

21291255 is an odd 8-digits composite number following 21291254 and preceding 21291256. In scientific notation, it is written as 2.1291255 × 10^7. The sum of its digits is 27. It has a total of 4 prime factors and 16 positive divisors. There are 11355120 positive integers (up to 21291255) that are relatively prime to 21291255.

Interesting facts

Basic properties

Name

Name twenty-one million two hundred ninety-one thousand two hundred fifty-five

Notation

Scientific notation 2.1291255 × 10^7
Engineering notation 2.1291255 × 10^6

Prime Factorization of 21291255

Prime Factorization 15 × 9 × 3 × 52571

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 21291255
Product of the distinct prime numbers

The prime factorization of 21291255 is 15 × 9 × 3 × 52571. Since it has a total of 4 prime factors.

Most popular turbo-numbers

4, 6, 71, 4, 399, 755, 2680, 8187, 67951, 62776, 981540, 230248, 295434, 6182699, 72949971, 92816648, 679001975, 506297446, 7893226814, 682389157

Basic calculations (n = 21291255)

Multiplication

n×y
n×2 42582510
n×3 63873765
n×4 85165020
n×5 106456275

Division

n÷y
n÷2 10645627.5
n÷3 7097085
n÷3 5322813.75
n÷5 4258251

Exponentiation

ny
n2 453317539475025
n3 9.6516993289353E+21
n4 2.0549679159569E+29
n5 4.3752845915457E+36

Nth Root

y√n
2√n 4614.2447919459
3√n 277.1620429278
4√n 67.928232657312
5√n 29.21731159956

Divisors of 21291255

1, 3, 9, 15, 27, 45, 135, 405, 52571, 157713, 473139, 788565, 1419417, 2365695, 7097085, 21291255

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 -21291254
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 21291255 can be divided by 16 positive divisors. The sum of these divisors (counting 21291255) is 1, the average is 0.0625.

Base conversion 21291255

Base System Value
2 Binary 1010001001110000011110111
3 Ternary 1111001201010000
4 Quaternary 1101032003313
5 Quinary 20422310010
6 Senary 2040202343
8 Octal 121160367
10 Decimal 21291255
12 Duodecimal 71693b3
16 Hexadecimal 144e0f7
20 Vigesimal 6d182f
36 Base36 cocfr

Cryptographic Hash Functions

md5 4078fb94a50e5111b726dc03a27803c9
sha1 cc8aedd29b9cef5973acbc26e10b18b33d4bd569
sha256 f5dbeced62401abe4f4becb29731a7e3bf5b28d2483cf4ce8a967d8ebee40590
sha512 3def824d2480c61d3c1c606e5d3abaa7e9607e77bf1ff5201e5bfddaf1d774763575477dd65fcbd419b3c1c2501ddd285e5bc6bc539d398b9dc3ce147d2c99df
ripemd-160 643e24fd1088b199a56ddd167db3dcfdda436f2d

21291255 as geometric shapes

Circle

Radius = n
Diameter 42582510
Circumference 133776900.58741
Area 1.4241390517581E+15

Sphere

Radius = n
Volume 4.0428943608588E+22
Surface area 5.6965562070326E+15
Circumference 133776900.58741

Square

Length = n
Perimeter 85165020
Area 453317539475025
Diagonal 30110381.580944

Cube

Length = n
Surface area 2719905236850150
Volume 9.6516993289353E+21
Space diagonal 36877535.416905

Equilateral Triangle

Length = n
Perimeter 63873765
Area 1.9629225258321E+14
Altitude 18438767.708452

Triangular Pyramid

Length = n
Surface area 1.9629225258321E+14
Volume 1.137463674244E+21
Height 10036793.860315