21497868 (number)

21497868 is an even 8-digits composite number following 21497867 and preceding 21497869. In scientific notation, it is written as 2.1497868 × 10^7. The sum of its digits is 45. It has a total of 7 prime factors and 72 positive divisors. There are 6138720 positive integers (up to 21497868) that are relatively prime to 21497868.

Interesting facts

Basic properties

Name

Name twenty-one million four hundred ninety-seven thousand eight hundred sixty-eight

Notation

Scientific notation 2.1497868 × 10^7
Engineering notation 2.1497868 × 10^6

Prime Factorization of 21497868

Prime Factorization 2 × 2 × 3 × 49 × 3 × 7 × 1741

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 7
Total number of prime factors
rad Radical 3582978
Product of the distinct prime numbers

The prime factorization of 21497868 is 2 × 2 × 3 × 49 × 3 × 7 × 1741. Since it has a total of 7 prime factors.

Most popular turbo-numbers

1, 10, 100, 33, 204, 600, 9831, 7546, 17912, 14190, 420687, 513539, 4991219, 8480961, 14482979, 51246434, 576269999, 915398428, 2391837543, 631627507

Basic calculations (n = 21497868)

Multiplication

n×y
n×2 42995736
n×3 64493604
n×4 85991472
n×5 107489340

Division

n÷y
n÷2 10748934
n÷3 7165956
n÷3 5374467
n÷5 4299573.6

Exponentiation

ny
n2 462158328545424
n3 9.9354187421702E+21
n4 2.135903206439E+29
n5 4.5917365192802E+36

Nth Root

y√n
2√n 4636.5793425757
3√n 278.05569679213
4√n 68.092432344393
5√n 29.273798449681

Divisors of 21497868

1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 49, 63, 84, 98, 126, 147, 196, 252, 294, 343, 441, 588, 686, 882, 1029, 1372, 1741, 1764, 2058, 3087, 3482, 4116, 5223, 6174, 6964, 10446, 12187, 12348, 15669, 20892, 24374, 31338, 36561, 48748, 62676, 73122, 85309, 109683, 146244, 170618, 219366, 255927, 341236, 438732, 511854, 597163, 767781, 1023708, 1194326, 1535562, 1791489, 2388652, 3071124, 3582978, 5374467, 7165956, 10748934, 21497868

72 divisors

τ Total Divisors 72
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21497867
Sum of the proper positive divisors of n
A Arithmetic Mean 0.013888888888889
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 72
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21497868 can be divided by 72 positive divisors. The sum of these divisors (counting 21497868) is 1, the average is 0.013888888888889.

Base conversion 21497868

Base System Value
2 Binary 1010010000000100000001100
3 Ternary 1111110012112100
4 Quaternary 1102000200030
5 Quinary 21000412433
6 Senary 2044435100
8 Octal 122004014
10 Decimal 21497868
12 Duodecimal 7248a90
16 Hexadecimal 148080c
20 Vigesimal 6e74d8
36 Base36 csrv0

Cryptographic Hash Functions

md5 ae5728463d27c4a9a7d750e935a8b260
sha1 5ed2f0f13015de694348b7bf75791d9ab2ae1889
sha256 b0b2b904357f98bf7c4eb1212d78c98464b292aa0b3f335031c70928ad74320a
sha512 ca33ffbc74ccf2dc3ad1afa28ea3166a94382977d7f1a3711cb76932583593b49d9b57d6ed1efc4c5b48068ca67ccaf1991c36a8949a62ec0a2566aae83f87d9
ripemd-160 74e2baadfec1b50202cb0b7576d6ee5c4cce96e0

21497868 as geometric shapes

Circle

Radius = n
Diameter 42995736
Circumference 135075088.35329
Area 1.4519132097536E+15

Sphere

Radius = n
Volume 4.1617384707653E+22
Surface area 5.8076528390146E+15
Circumference 135075088.35329

Square

Length = n
Perimeter 85991472
Area 462158328545424
Diagonal 30402576.487707

Cube

Length = n
Surface area 2772949971272544
Volume 9.9354187421702E+21
Space diagonal 37235399.630409

Equilateral Triangle

Length = n
Perimeter 64493604
Area 2.0012042654545E+14
Altitude 18617699.815205

Triangular Pyramid

Length = n
Surface area 2.0012042654545E+14
Volume 1.1709003277527E+21
Height 10134192.162569