21861639 (number)

21861639 is an odd 8-digits composite number following 21861638 and preceding 21861640. In scientific notation, it is written as 2.1861639 × 10^7. The sum of its digits is 36. It has a total of 2 prime factors and 4 positive divisors. There are 14574420 positive integers (up to 21861639) that are relatively prime to 21861639.

Interesting facts

Basic properties

Name

Name twenty-one million eight hundred sixty-one thousand six hundred thirty-nine

Notation

Scientific notation 2.1861639 × 10^7
Engineering notation 2.1861639 × 10^6

Prime Factorization of 21861639

Prime Factorization 9 × 2429071

Composite number
ω Distinct Factors 2
Total number of distinct prime factors
Ω Total Factors 2
Total number of prime factors
rad Radical 21861639
Product of the distinct prime numbers

The prime factorization of 21861639 is 9 × 2429071. Since it has a total of 2 prime factors.

Most popular turbo-numbers

8, 3, 35, 74, 615, 547, 9068, 8802, 21413, 39302, 399543, 873101, 6876274, 9892280, 36604131, 29756913, 470782350, 117107299, 2915917976, 1659953672

Basic calculations (n = 21861639)

Multiplication

n×y
n×2 43723278
n×3 65584917
n×4 87446556
n×5 109308195

Division

n÷y
n÷2 10930819.5
n÷3 7287213
n÷3 5465409.75
n÷5 4372327.8

Exponentiation

ny
n2 477931259766321
n3 1.0448360667827E+22
n4 2.2841828906182E+29
n5 4.9935981764672E+36

Nth Root

y√n
2√n 4675.6431643144
3√n 279.61528372187
4√n 68.378674777407
5√n 29.372204530181

Divisors of 21861639

1, 9, 2429071, 21861639

4 divisors

τ Total Divisors 4
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -21861638
Sum of the proper positive divisors of n
A Arithmetic Mean 0.25
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 4
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 21861639 can be divided by 4 positive divisors. The sum of these divisors (counting 21861639) is 1, the average is 0.25.

Base conversion 21861639

Base System Value
2 Binary 1010011011001010100000111
3 Ternary 1112010200112100
4 Quaternary 1103121110013
5 Quinary 21044033024
6 Senary 2100323143
8 Octal 123312407
10 Decimal 21861639
12 Duodecimal 73a34b3
16 Hexadecimal 14d9507
20 Vigesimal 6gce1j
36 Base36 d0kjr

Cryptographic Hash Functions

md5 6d7da5a4ca5f172a60c9e2453a4b1398
sha1 292607efb28cc57d4626b34ac6e7b24049d929f1
sha256 7d0986a06d8234bc582ddb1a0cc8bdb4bb470bf5b7dbd1bf650080b15221b42a
sha512 f7ff7b2a880650a5fc5906219aa6fb78f4f838668c51c1009ab684051612938e5fcab3711d80c03f211db2528db25b0558cdb8b52aec4cbd86bc6fa683cad380
ripemd-160 97f89d2ecbec84595ea1467649c3c6b2c8bbcad1

21861639 as geometric shapes

Circle

Radius = n
Diameter 43723278
Circumference 137360728.95566
Area 1.5014653346028E+15

Sphere

Radius = n
Volume 4.3765990821467E+22
Surface area 6.0058613384112E+15
Circumference 137360728.95566

Square

Length = n
Perimeter 87446556
Area 477931259766321
Diagonal 30917026.369505

Cube

Length = n
Surface area 2867587558597926
Volume 1.0448360667827E+22
Space diagonal 37865469.484729

Equilateral Triangle

Length = n
Perimeter 65584917
Area 2.0695030611017E+14
Altitude 18932734.742365

Triangular Pyramid

Length = n
Surface area 2.0695030611017E+14
Volume 1.2313511134172E+21
Height 10305675.456502