21491672 (number)

21491672 is an even 8-digits composite number following 21491671 and preceding 21491673. In scientific notation, it is written as 2.1491672 × 10^7. The sum of its digits is 32. It has a total of 6 prime factors and 32 positive divisors. There are 9838080 positive integers (up to 21491672) that are relatively prime to 21491672.

Interesting facts

Basic properties

Name

Name twenty-one million four hundred ninety-one thousand six hundred seventy-two

Notation

Scientific notation 2.1491672 × 10^7
Engineering notation 2.1491672 × 10^6

Prime Factorization of 21491672

Prime Factorization 2 × 2 × 2 × 17 × 37 × 4271

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 5372918
Product of the distinct prime numbers

The prime factorization of 21491672 is 2 × 2 × 2 × 17 × 37 × 4271. Since it has a total of 6 prime factors.

Most popular turbo-numbers

4, 4, 1, 9, 760, 268, 9034, 6036, 52905, 93611, 409327, 990968, 2912920, 2616553, 31310043, 87669681, 271034139, 102927321, 1647966406, 2581887988

Basic calculations (n = 21491672)

Multiplication

n×y
n×2 42983344
n×3 64475016
n×4 85966688
n×5 107458360

Division

n÷y
n÷2 10745836
n÷3 7163890.6666667
n÷3 5372918
n÷5 4298334.4

Exponentiation

ny
n2 461891965355584
n3 9.9268306188576E+21
n4 2.1334418766004E+29
n5 4.5851233042961E+36

Nth Root

y√n
2√n 4635.9111294329
3√n 278.02898098572
4√n 68.087525505286
5√n 29.272110827732

Divisors of 21491672

1, 2, 4, 8, 17, 34, 37, 68, 74, 136, 148, 296, 629, 1258, 2516, 4271, 5032, 8542, 17084, 34168, 72607, 145214, 158027, 290428, 316054, 580856, 632108, 1264216, 2686459, 5372918, 10745836, 21491672

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 -21491671
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 21491672 can be divided by 32 positive divisors. The sum of these divisors (counting 21491672) is 1, the average is 0.03125.

Base conversion 21491672

Base System Value
2 Binary 1010001111110111111011000
3 Ternary 1111102220000212
4 Quaternary 1101332333120
5 Quinary 21000213142
6 Senary 2044350252
8 Octal 121767730
10 Decimal 21491672
12 Duodecimal 7245388
16 Hexadecimal 147efd8
20 Vigesimal 6e693c
36 Base36 csn2w

Cryptographic Hash Functions

md5 831b87ec0d961d0283bda1905e04dba4
sha1 7319a02c78655008f48d0564a251e7208444967d
sha256 8c76910f3c4da3c895ea486c32f909e3df4c0e1a24d26415b9df737bc8b59519
sha512 31a870187ce313fe6ffb31545993286c69d63a62bda9d7b8390acd029ba3292a42463c5582ad1f146ff5877e8d67bd29b1632ff28e9123813bd565c09ce4e059
ripemd-160 7b8ce14d17267b4d79739fea4caaccc0fcfe8a87

21491672 as geometric shapes

Circle

Radius = n
Diameter 42983344
Circumference 135036157.73712
Area 1.4510764051133E+15

Sphere

Radius = n
Volume 4.1581410860844E+22
Surface area 5.804305620453E+15
Circumference 135036157.73712

Square

Length = n
Perimeter 85966688
Area 461891965355584
Diagonal 30393814.020474

Cube

Length = n
Surface area 2771351792133504
Volume 9.9268306188576E+21
Space diagonal 37224667.843605

Equilateral Triangle

Length = n
Perimeter 64475016
Area 2.0000508790093E+14
Altitude 18612333.921803

Triangular Pyramid

Length = n
Surface area 2.0000508790093E+14
Volume 1.1698882077141E+21
Height 10131271.340158