21489871 (number)

21489871 is an odd 8-digits composite number following 21489870 and preceding 21489872. In scientific notation, it is written as 2.1489871 × 10^7. The sum of its digits is 40. It has a total of 4 prime factors and 12 positive divisors. There are 19624800 positive integers (up to 21489871) that are relatively prime to 21489871.

Interesting facts

Basic properties

Name

Name twenty-one million four hundred eighty-nine thousand eight hundred seventy-one

Notation

Scientific notation 2.1489871 × 10^7
Engineering notation 2.1489871 × 10^6

Prime Factorization of 21489871

Prime Factorization 13 × 13 × 101 × 1259

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 1653067
Product of the distinct prime numbers

The prime factorization of 21489871 is 13 × 13 × 101 × 1259. Since it has a total of 4 prime factors.

Most popular turbo-numbers

7, 6, 77, 9, 99, 215, 5245, 1627, 73947, 29407, 401018, 629693, 8818963, 1499977, 49099161, 11323570, 203563726, 238018005, 7118097786, 3019269883

Basic calculations (n = 21489871)

Multiplication

n×y
n×2 42979742
n×3 64469613
n×4 85959484
n×5 107449355

Division

n÷y
n÷2 10744935.5
n÷3 7163290.3333333
n÷3 5372467.75
n÷5 4297974.2

Exponentiation

ny
n2 461814555596641
n3 9.9243352256941E+21
n4 2.1327268376092E+29
n5 4.583202461846E+36

Nth Root

y√n
2√n 4635.716880915
3√n 278.02121450168
4√n 68.086099028473
5√n 29.271620211285

Divisors of 21489871

1, 13, 101, 169, 1259, 1313, 16367, 17069, 127159, 212771, 1653067, 21489871

12 divisors

τ Total Divisors 12
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21489870
Sum of the proper positive divisors of n
A Arithmetic Mean 0.083333333333333
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 12
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21489871 can be divided by 12 positive divisors. The sum of these divisors (counting 21489871) is 1, the average is 0.083333333333333.

Base conversion 21489871

Base System Value
2 Binary 1010001111110100011001111
3 Ternary 1111102210120011
4 Quaternary 1101332203033
5 Quinary 21000133441
6 Senary 2044334051
8 Octal 121764317
10 Decimal 21489871
12 Duodecimal 7244327
16 Hexadecimal 147e8cf
20 Vigesimal 6e64db
36 Base36 cslov

Cryptographic Hash Functions

md5 6434416bd5d2bdd1f6ded5536d37a495
sha1 9834e93e8fee9e688c5b72089d1cd17f4419f0e0
sha256 e00d456cbc7b28abd9e2ee11c4b6d87ad75ec310243f21fa9a2f2822f603a67b
sha512 d6235e5ddf86b5a3397ebf3e6916efb51bc272d0b984217370bea945570d4627ed6d4822584a097b5a4bfa512e7ac020c788245669578061ff470bcef0e03081
ripemd-160 5d3c03a7b77e660755203db68dc1034ebf7f8d5b

21489871 as geometric shapes

Circle

Radius = n
Diameter 42979742
Circumference 135024841.72038
Area 1.4508332151832E+15

Sphere

Radius = n
Volume 4.1570958182404E+22
Surface area 5.803332860733E+15
Circumference 135024841.72038

Square

Length = n
Perimeter 85959484
Area 461814555596641
Diagonal 30391267.021848

Cube

Length = n
Surface area 2770887333579846
Volume 9.9243352256941E+21
Space diagonal 37221548.420101

Equilateral Triangle

Length = n
Perimeter 64469613
Area 1.9997156849206E+14
Altitude 18610774.21005

Triangular Pyramid

Length = n
Surface area 1.9997156849206E+14
Volume 1.1695941228095E+21
Height 10130422.340616