2156831721 (number)

2156831721 is an odd 10-digits composite number following 2156831720 and preceding 2156831722. In scientific notation, it is written as 2.156831721 × 10^9. The sum of its digits is 36. It has a total of 5 prime factors and 32 positive divisors. There are 1236060000 positive integers (up to 2156831721) that are relatively prime to 2156831721.

Interesting facts

Basic properties

Name

Name two billion one hundred fifty-six million eight hundred thirty-one thousand seven hundred twenty-one

Notation

Scientific notation 2.156831721 × 10^9
Engineering notation 2.156831721 × 10^9

Prime Factorization of 2156831721

Prime Factorization 9 × 11 × 19 × 1051 × 1091

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 2156831721
Product of the distinct prime numbers

The prime factorization of 2156831721 is 9 × 11 × 19 × 1051 × 1091. Since it has a total of 5 prime factors.

Most popular turbo-numbers

Basic calculations (n = 2156831721)

Multiplication

n×y
n×2 4313663442
n×3 6470495163
n×4 8627326884
n×5 10784158605

Division

n÷y
n÷2 1078415860.5
n÷3 718943907
n÷3 539207930.25
n÷5 431366344.2

Exponentiation

ny
n2 4651923072711821841
n3 1.0033415246877E+28
n4 2.1640388274429E+37
n5 4.6674675885044E+46

Nth Root

y√n
2√n 46441.702391278
3√n 1292.0284815854
4√n 215.503369791
5√n 73.58058772448

Divisors of 2156831721

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -2156831720
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 2156831721 can be divided by 32 positive divisors. The sum of these divisors (counting 2156831721) is 1, the average is 0.03125.

Base conversion 2156831721

Base System Value
2 Binary 10000000100011101010001111101001
3 Ternary 12120022110101220100
4 Quaternary 2000203222033221
5 Quinary 13404122103341
6 Senary 554004220013
8 Octal 20043521751
10 Decimal 2156831721
12 Duodecimal 50239a609
16 Hexadecimal 808ea3e9
20 Vigesimal 1de03j61
36 Base36 zo4e09

Cryptographic Hash Functions

md5 ae063e040e6bd51f2468420533f4eb27
sha1 24acc55067b77bc1008b94c1f23fee47cf075445
sha256 5a91149e931b7f7a19a87582c234cbb6a25b24d9e732ddd4c2e2f68f67d12a72
sha512 768d885a2153efa7b8bd1e89118f5bfcc14a2659c0dafe19aa2eee71d346f12d1f16cec0a2ad5d20c084b04731871f9a577e78c575eea0e1713cf07888eaff22
ripemd-160 ff00041df4d49683e99e986383baa07ac0d057fd

2156831721 as geometric shapes

Circle

Radius = n
Diameter 4313663442
Circumference 13551773379.446
Area 1.4614447350296E+19

Sphere

Radius = n
Volume 4.2027871506671E+28
Surface area 5.8457789401185E+19
Circumference 13551773379.446

Square

Length = n
Perimeter 8627326884
Area 4651923072711821841
Diagonal 3050220671.5947

Cube

Length = n
Surface area 2.7911538436271E+19
Volume 1.0033415246877E+28
Space diagonal 3735742124.1482

Equilateral Triangle

Length = n
Perimeter 6470495163
Area 2.0143417787097E+18
Altitude 1867871062.0741

Triangular Pyramid

Length = n
Surface area 2.0143417787097E+18
Volume 1.1824493265878E+27
Height 1016740223.8649