161445813 (number)

161445813 is an odd 9-digits composite number following 161445812 and preceding 161445814. In scientific notation, it is written as 1.61445813 × 10^8. The sum of its digits is 33. It has a total of 4 prime factors and 16 positive divisors. There are 102364416 positive integers (up to 161445813) that are relatively prime to 161445813.

Interesting facts

Basic properties

Name

Name one hundred sixty-one million four hundred forty-five thousand eight hundred thirteen

Notation

Scientific notation 1.61445813 × 10^8
Engineering notation 1.61445813 × 10^6

Prime Factorization of 161445813

Prime Factorization 3 × 29 × 67 × 27697

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 161445813
Product of the distinct prime numbers

The prime factorization of 161445813 is 3 × 29 × 67 × 27697. Since it has a total of 4 prime factors.

Most popular turbo-numbers

9, 1, 18, 51, 754, 655, 9319, 7787, 78178, 4238, 979643, 693752, 9616985, 6499745, 59069584, 81153491, 299440452, 989122216, 358610753, 1770563189

Basic calculations (n = 161445813)

Multiplication

n×y
n×2 322891626
n×3 484337439
n×4 645783252
n×5 807229065

Division

n÷y
n÷2 80722906.5
n÷3 53815271
n÷3 40361453.25
n÷5 32289162.6

Exponentiation

ny
n2 26064750535230969
n3 4.2080448408025E+24
n4 6.7937122046382E+32
n5 1.0968163901658E+41

Nth Root

y√n
2√n 12706.132889278
3√n 544.51384753483
4√n 112.72148370776
5√n 43.813238659851

Divisors of 161445813

1, 3, 29, 67, 87, 201, 1943, 5829, 27697, 83091, 803213, 1855699, 2409639, 5567097, 53815271, 161445813

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 -161445812
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 161445813 can be divided by 16 positive divisors. The sum of these divisors (counting 161445813) is 1, the average is 0.0625.

Base conversion 161445813

Base System Value
2 Binary 1001100111110111011110110101
3 Ternary 102020210022000120
4 Quaternary 21213313132311
5 Quinary 312312231223
6 Senary 24004202153
8 Octal 1147673665
10 Decimal 161445813
12 Duodecimal 46099359
16 Hexadecimal 99f77b5
20 Vigesimal 2a90ead
36 Base36 2o4cdx

Cryptographic Hash Functions

md5 58d0a16264fa826690f5c942e3220976
sha1 82f5c0b30b71bc4785395df374320a67d294838c
sha256 9a9179a1f08e1563bb8b038df474893226255760fb89e4cc5532f1ac93af1d90
sha512 80602fc0c851179ef8e09059ede32401a1d5c2905c329d7ef08131b73bd3679472e94cc4639fe1004e03c38d8c4c6eeb87fa67ed6f7a9e73fdc099698b802cdc
ripemd-160 94f479715512a8322308ebb9415435fe218babda

161445813 as geometric shapes

Circle

Radius = n
Diameter 322891626
Circumference 1014393960.1473
Area 8.1884828799132E+16

Sphere

Radius = n
Volume 1.7626617010456E+25
Surface area 3.2753931519653E+17
Circumference 1014393960.1473

Square

Length = n
Perimeter 645783252
Area 26064750535230969
Diagonal 228318858.33295

Cube

Length = n
Surface area 156388503211385814
Volume 4.2080448408025E+24
Space diagonal 279632350.78526

Equilateral Triangle

Length = n
Perimeter 484337439
Area 1.1286368053407E+16
Altitude 139816175.39263

Triangular Pyramid

Length = n
Surface area 1.1286368053407E+16
Volume 4.9592284041142E+23
Height 76106286.110984