21908047 (number)

21908047 is an odd 8-digits composite number following 21908046 and preceding 21908048. In scientific notation, it is written as 2.1908047 × 10^7. The sum of its digits is 31. It has a total of 4 prime factors and 12 positive divisors. There are 18629520 positive integers (up to 21908047) that are relatively prime to 21908047.

Interesting facts

Basic properties

Name

Name twenty-one million nine hundred eight thousand forty-seven

Notation

Scientific notation 2.1908047 × 10^7
Engineering notation 2.1908047 × 10^6

Prime Factorization of 21908047

Prime Factorization 7 × 7 × 131 × 3413

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 3129721
Product of the distinct prime numbers

The prime factorization of 21908047 is 7 × 7 × 131 × 3413. Since it has a total of 4 prime factors.

Most popular turbo-numbers

3, 2, 26, 47, 971, 514, 3799, 2669, 71393, 66549, 967395, 302217, 1636184, 1349876, 7632028, 95189433, 308186789, 790737203, 9106486926, 8354908912

Basic calculations (n = 21908047)

Multiplication

n×y
n×2 43816094
n×3 65724141
n×4 87632188
n×5 109540235

Division

n÷y
n÷2 10954023.5
n÷3 7302682.3333333
n÷3 5477011.75
n÷5 4381609.4

Exponentiation

ny
n2 479962523354209
n3 1.0515041519883E+22
n4 2.3036402382454E+29
n5 5.0468258610571E+36

Nth Root

y√n
2√n 4680.6032730835
3√n 279.8130001387
4√n 68.41493457633
5√n 29.384664248294

Divisors of 21908047

1, 7, 49, 131, 917, 3413, 6419, 23891, 167237, 447103, 3129721, 21908047

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 -21908046
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 21908047 can be divided by 12 positive divisors. The sum of these divisors (counting 21908047) is 1, the average is 0.083333333333333.

Base conversion 21908047

Base System Value
2 Binary 1010011100100101001001111
3 Ternary 1112020001012011
4 Quaternary 1103210221033
5 Quinary 21102024142
6 Senary 2101322051
8 Octal 123445117
10 Decimal 21908047
12 Duodecimal 7406327
16 Hexadecimal 14e4a4f
20 Vigesimal 6gia27
36 Base36 d1kcv

Cryptographic Hash Functions

md5 3924e80c6762f47e17e181421a41980e
sha1 15f1053f1c43fb7433c62a333be543732bbf73de
sha256 62f95db933e39bac0e88890beff4df0ae938e4dd9893bb536c4dbf022c2aac38
sha512 fa14cd805ce4eb6b9e5d0f67b3fbfd04411a4027bb726c59eb26d8e060bbcd9e139b3c377ba71b04d536d0e4314b5e3c018efbe16531e4952b357a909e0e5b8c
ripemd-160 c98a160432e0690919ba0e114279f3ff20046408

21908047 as geometric shapes

Circle

Radius = n
Diameter 43816094
Circumference 137652319.0194
Area 1.507846737368E+15

Sphere

Radius = n
Volume 4.4045302921406E+22
Surface area 6.031386949472E+15
Circumference 137652319.0194

Square

Length = n
Perimeter 87632188
Area 479962523354209
Diagonal 30982657.192507

Cube

Length = n
Surface area 2879775140125254
Volume 1.0515041519883E+22
Space diagonal 37945850.498607

Equilateral Triangle

Length = n
Perimeter 65724141
Area 2.0782986904461E+14
Altitude 18972925.249303

Triangular Pyramid

Length = n
Surface area 2.0782986904461E+14
Volume 1.2392095271945E+21
Height 10327552.397502