21031857 (number)

21031857 is an odd 8-digits composite number following 21031856 and preceding 21031858. In scientific notation, it is written as 2.1031857 × 10^7. The sum of its digits is 27. It has a total of 6 prime factors and 48 positive divisors. There are 10454400 positive integers (up to 21031857) that are relatively prime to 21031857.

Interesting facts

Basic properties

Name

Name twenty-one million thirty-one thousand eight hundred fifty-seven

Notation

Scientific notation 2.1031857 × 10^7
Engineering notation 2.1031857 × 10^6

Prime Factorization of 21031857

Prime Factorization 9 × 7 × 11 × 11 × 31 × 89

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 6
Total number of prime factors
rad Radical 1911987
Product of the distinct prime numbers

The prime factorization of 21031857 is 9 × 7 × 11 × 11 × 31 × 89. Since it has a total of 6 prime factors.

Most popular turbo-numbers

7, 4, 85, 49, 894, 883, 9320, 805, 49507, 25340, 875578, 304797, 8286904, 54452, 45811139, 81499211, 93876003, 95463069, 3460467527, 5026850075

Basic calculations (n = 21031857)

Multiplication

n×y
n×2 42063714
n×3 63095571
n×4 84127428
n×5 105159285

Division

n÷y
n÷2 10515928.5
n÷3 7010619
n÷3 5257964.25
n÷5 4206371.4

Exponentiation

ny
n2 442339008868449
n3 9.303210780043E+21
n4 1.9566379876672E+29
n5 4.1151730357385E+36

Nth Root

y√n
2√n 4586.0502613905
3√n 276.03185675134
4√n 67.720382909361
5√n 29.145769372392

Divisors of 21031857

1, 7, 9, 11, 31, 63, 77, 89, 99, 121, 217, 279, 341, 623, 693, 801, 847, 979, 1089, 1953, 2387, 2759, 3069, 3751, 5607, 6853, 7623, 8811, 10769, 19313, 21483, 24831, 26257, 30349, 33759, 61677, 75383, 96921, 173817, 212443, 236313, 273141, 333839, 678447, 1911987, 2336873, 3004551, 21031857

48 divisors

τ Total Divisors 48
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21031856
Sum of the proper positive divisors of n
A Arithmetic Mean 0.020833333333333
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 48
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21031857 can be divided by 48 positive divisors. The sum of these divisors (counting 21031857) is 1, the average is 0.020833333333333.

Base conversion 21031857

Base System Value
2 Binary 1010000001110101110110001
3 Ternary 1110120112021200
4 Quaternary 1100032232301
5 Quinary 20341004412
6 Senary 2030441413
8 Octal 120165661
10 Decimal 21031857
12 Duodecimal 7063269
16 Hexadecimal 140ebb1
20 Vigesimal 6b8jch
36 Base36 cisa9

Cryptographic Hash Functions

md5 323d86f772211a17eafa7f0dcc1d2d75
sha1 8d4f2b929062dd35c22ad4014f027ecaee262209
sha256 cd2e52abd30977c33103d9724274443f31e674e9f5e6f4df661324cd7a544228
sha512 1b7af3ef14fe1c1f244e26a0dada59d4f6f7db3e905fa8282b8e56047f149951d8dd9a20a68fb1b519477d555cbf96912072ec3fc9b37283a832ddf665ddaa92
ripemd-160 0b0aef481b2fa995aa4562be004d4b778ec2dd37

21031857 as geometric shapes

Circle

Radius = n
Diameter 42063714
Circumference 132147054.8851
Area 1.3896489806573E+15

Sphere

Radius = n
Volume 3.8969198188507E+22
Surface area 5.5585959226292E+15
Circumference 132147054.8851

Square

Length = n
Perimeter 84127428
Area 442339008868449
Diagonal 29743537.411292

Cube

Length = n
Surface area 2654034053210694
Volume 9.303210780043E+21
Space diagonal 36428244.901523

Equilateral Triangle

Length = n
Perimeter 63095571
Area 1.9153840938245E+14
Altitude 18214122.450762

Triangular Pyramid

Length = n
Surface area 1.9153840938245E+14
Volume 1.096393904896E+21
Height 9914512.4704305