21385912 (number)

21385912 is an even 8-digits composite number following 21385911 and preceding 21385913. In scientific notation, it is written as 2.1385912 × 10^7. The sum of its digits is 31. It has a total of 5 prime factors and 16 positive divisors. There are 10624224 positive integers (up to 21385912) that are relatively prime to 21385912.

Interesting facts

Basic properties

Name

Name twenty-one million three hundred eighty-five thousand nine hundred twelve

Notation

Scientific notation 2.1385912 × 10^7
Engineering notation 2.1385912 × 10^6

Prime Factorization of 21385912

Prime Factorization 2 × 2 × 2 × 157 × 17027

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 5346478
Product of the distinct prime numbers

The prime factorization of 21385912 is 2 × 2 × 2 × 157 × 17027. Since it has a total of 5 prime factors.

Most popular turbo-numbers

1, 3, 59, 23, 182, 420, 382, 2596, 92239, 14772, 254298, 888347, 5315493, 1384701, 67179295, 13567294, 772295376, 201178285, 7662001263, 5796458951

Basic calculations (n = 21385912)

Multiplication

n×y
n×2 42771824
n×3 64157736
n×4 85543648
n×5 106929560

Division

n÷y
n÷2 10692956
n÷3 7128637.3333333
n÷3 5346478
n÷5 4277182.4

Exponentiation

ny
n2 457357232071744
n3 9.7810015176499E+21
n4 2.0917563772833E+29
n5 4.4734117810019E+36

Nth Root

y√n
2√n 4624.4904584181
3√n 277.57217287858
4√n 68.003606216274
5√n 29.243244481038

Divisors of 21385912

1, 2, 4, 8, 157, 314, 628, 1256, 17027, 34054, 68108, 136216, 2673239, 5346478, 10692956, 21385912

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 -21385911
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 21385912 can be divided by 16 positive divisors. The sum of these divisors (counting 21385912) is 1, the average is 0.0625.

Base conversion 21385912

Base System Value
2 Binary 1010001100101001010111000
3 Ternary 1111020111221211
4 Quaternary 1101211022320
5 Quinary 20433322122
6 Senary 2042212504
8 Octal 121451270
10 Decimal 21385912
12 Duodecimal 71b4134
16 Hexadecimal 14652b8
20 Vigesimal 6dd4fc
36 Base36 cqdh4

Cryptographic Hash Functions

md5 ae0c0c6db3761a49744c1ad6e3fc3d46
sha1 356823f0ddf401a263ab586243f14cbaf473edea
sha256 7f24ac181e95f5baeba7cfc09122862acbb7e490c9d668b217688a279989c18c
sha512 9226c2516ecae7d6b00749c6df4907b2b3fd52123b8088be1c49c2dbd90c6f60783cbd3a8acda8a9a5cd4458c65a6426acd03df27542b7e1e917b584ceeed5b7
ripemd-160 705e3f0bda524fafc6139ad851ff39135e6578c2

21385912 as geometric shapes

Circle

Radius = n
Diameter 42771824
Circumference 134371648.05904
Area 1.4368301203428E+15

Sphere

Radius = n
Volume 4.0970563350133E+22
Surface area 5.747320481371E+15
Circumference 134371648.05904

Square

Length = n
Perimeter 85543648
Area 457357232071744
Diagonal 30244246.794118

Cube

Length = n
Surface area 2744143392430464
Volume 9.7810015176499E+21
Space diagonal 37041486.150197

Equilateral Triangle

Length = n
Perimeter 64157736
Area 1.9804149078933E+14
Altitude 18520743.075098

Triangular Pyramid

Length = n
Surface area 1.9804149078933E+14
Volume 1.152702083321E+21
Height 10081415.598039