161297788 (number)

161297788 is an even 9-digits composite number following 161297787 and preceding 161297789. In scientific notation, it is written as 1.61297788 × 10^8. The sum of its digits is 49. It has a total of 4 prime factors and 12 positive divisors. There are 80202960 positive integers (up to 161297788) that are relatively prime to 161297788.

Interesting facts

Basic properties

Name

Name one hundred sixty-one million two hundred ninety-seven thousand seven hundred eighty-eight

Notation

Scientific notation 1.61297788 × 10^8
Engineering notation 1.61297788 × 10^6

Prime Factorization of 161297788

Prime Factorization 2 × 2 × 181 × 222787

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 80648894
Product of the distinct prime numbers

The prime factorization of 161297788 is 2 × 2 × 181 × 222787. Since it has a total of 4 prime factors.

Most popular turbo-numbers

8, 6, 45, 9, 174, 700, 3205, 4203, 88552, 88646, 186160, 735577, 333290, 1982994, 25239382, 24538888, 994716730, 776463936, 6007349119, 9638728308

Basic calculations (n = 161297788)

Multiplication

n×y
n×2 322595576
n×3 483893364
n×4 645191152
n×5 806488940

Division

n÷y
n÷2 80648894
n÷3 53765929.333333
n÷3 40324447
n÷5 32259557.6

Exponentiation

ny
n2 26016976413692944
n3 4.1964807459768E+24
n4 6.7688306171065E+32
n5 1.091797405886E+41

Nth Root

y√n
2√n 12700.306610472
3√n 544.34738031152
4√n 112.69563705163
5√n 43.805201493236

Divisors of 161297788

1, 2, 4, 181, 362, 724, 222787, 445574, 891148, 40324447, 80648894, 161297788

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 -161297787
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 161297788 can be divided by 12 positive divisors. The sum of these divisors (counting 161297788) is 1, the average is 0.083333333333333.

Base conversion 161297788

Base System Value
2 Binary 1001100111010011010101111100
3 Ternary 102020111202222011
4 Quaternary 21213103111330
5 Quinary 312243012123
6 Senary 24001101004
8 Octal 1147232574
10 Decimal 161297788
12 Duodecimal 46027764
16 Hexadecimal 99d357c
20 Vigesimal 2a82498
36 Base36 2o1664

Cryptographic Hash Functions

md5 e7e7662b39f0f2dd4c3c4b22620b4bdc
sha1 155d7f629dcac3b7bd63d4057634010907e93e2f
sha256 eaf545338f4f44d60759002d210bcc62c4fd4820641458cf5176e4d9f9b486ca
sha512 2a0677345dcf83f9a516de12dc39a063dcea37101c101efdcb314eac086757551f81276d33adea6068f6f9cc630b9bfca093d2f7fc3d3526e5ce7b4b040ab57b
ripemd-160 6d893d059db0872c6d1d1e5aa1691e688b2ee321

161297788 as geometric shapes

Circle

Radius = n
Diameter 322595576
Circumference 1013463891.6422
Area 8.1734741969877E+16

Sphere

Radius = n
Volume 1.7578177443322E+25
Surface area 3.2693896787951E+17
Circumference 1013463891.6422

Square

Length = n
Perimeter 645191152
Area 26016976413692944
Diagonal 228109519.37038

Cube

Length = n
Surface area 156101858482157664
Volume 4.1964807459768E+24
Space diagonal 279375963.96447

Equilateral Triangle

Length = n
Perimeter 483893364
Area 1.1265681251959E+16
Altitude 139687981.98224

Triangular Pyramid

Length = n
Surface area 1.1265681251959E+16
Volume 4.945599987665E+23
Height 76036506.456793