161445856 (number)

161445856 is an even 9-digits composite number following 161445855 and preceding 161445857. In scientific notation, it is written as 1.61445856 × 10^8. The sum of its digits is 40. It has a total of 8 prime factors and 48 positive divisors. There are 67737600 positive integers (up to 161445856) that are relatively prime to 161445856.

Interesting facts

Basic properties

Name

Name one hundred sixty-one million four hundred forty-five thousand eight hundred fifty-six

Notation

Scientific notation 1.61445856 × 10^8
Engineering notation 1.61445856 × 10^6

Prime Factorization of 161445856

Prime Factorization 2 × 2 × 2 × 2 × 2 × 13 × 11 × 35281

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 8
Total number of prime factors
rad Radical 10090366
Product of the distinct prime numbers

The prime factorization of 161445856 is 2 × 2 × 2 × 2 × 2 × 13 × 11 × 35281. Since it has a total of 8 prime factors.

Most popular turbo-numbers

7, 10, 15, 8, 746, 255, 1349, 1263, 56182, 37433, 98142, 344563, 1757854, 2724643, 23665445, 72929421, 605420460, 311527512, 3206799240, 8479957820

Basic calculations (n = 161445856)

Multiplication

n×y
n×2 322891712
n×3 484337568
n×4 645783424
n×5 807229280

Division

n÷y
n÷2 80722928
n÷3 53815285.333333
n÷3 40361464
n÷5 32289171.2

Exponentiation

ny
n2 26064764419572736
n3 4.2080482031563E+24
n4 6.7937194424782E+32
n5 1.0968178508147E+41

Nth Root

y√n
2√n 12706.134581374
3√n 544.51389587735
4√n 112.72149121341
5√n 43.813240993723

Divisors of 161445856

1, 2, 4, 8, 11, 13, 16, 22, 26, 32, 44, 52, 88, 104, 143, 176, 208, 286, 352, 416, 572, 1144, 2288, 4576, 35281, 70562, 141124, 282248, 388091, 458653, 564496, 776182, 917306, 1128992, 1552364, 1834612, 3104728, 3669224, 5045183, 6209456, 7338448, 10090366, 12418912, 14676896, 20180732, 40361464, 80722928, 161445856

48 divisors

τ Total Divisors 48
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -161445855
Sum of the proper positive divisors of n
A Arithmetic Mean 0.020833333333333
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 48
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 161445856 can be divided by 48 positive divisors. The sum of these divisors (counting 161445856) is 1, the average is 0.020833333333333.

Base conversion 161445856

Base System Value
2 Binary 1001100111110111011111100000
3 Ternary 102020210022002011
4 Quaternary 21213313133200
5 Quinary 312312231411
6 Senary 24004202304
8 Octal 1147673740
10 Decimal 161445856
12 Duodecimal 46099394
16 Hexadecimal 99f77e0
20 Vigesimal 2a90ecg
36 Base36 2o4cf4

Cryptographic Hash Functions

md5 55fb546becbc1edc96a561c947f48b4a
sha1 25de93333d72d0aa724eb6c66b6e260e5899075e
sha256 67a2ab6d9d2d3f116ea298737db019ff78dc49d20095b93a077a7c31044a1d88
sha512 daa1c78609be659f5b4834188178b995c9d122c1e53d2dd17d194138dde005689d6e7a52babb042b4958ed368319150bf12d5cd3f13caaada2a76ec96c2da08c
ripemd-160 8912b4bcd5d96151fb614bafce8a0c49e7a7d2ed

161445856 as geometric shapes

Circle

Radius = n
Diameter 322891712
Circumference 1014394230.3242
Area 8.1884872418078E+16

Sphere

Radius = n
Volume 1.762663109465E+25
Surface area 3.2753948967231E+17
Circumference 1014394230.3242

Square

Length = n
Perimeter 645783424
Area 26064764419572736
Diagonal 228318919.14413

Cube

Length = n
Surface area 156388586517436416
Volume 4.2080482031563E+24
Space diagonal 279632425.26345

Equilateral Triangle

Length = n
Perimeter 484337568
Area 1.1286374065503E+16
Altitude 139816212.63172

Triangular Pyramid

Length = n
Surface area 1.1286374065503E+16
Volume 4.9592323666861E+23
Height 76106306.381378