161749138 (number)

161749138 is an even 9-digits composite number following 161749137 and preceding 161749139. In scientific notation, it is written as 1.61749138 × 10^8. The sum of its digits is 40. It has a total of 3 prime factors and 8 positive divisors. There are 80378244 positive integers (up to 161749138) that are relatively prime to 161749138.

Interesting facts

Basic properties

Name

Name one hundred sixty-one million seven hundred forty-nine thousand one hundred thirty-eight

Notation

Scientific notation 1.61749138 × 10^8
Engineering notation 1.61749138 × 10^6

Prime Factorization of 161749138

Prime Factorization 2 × 163 × 496163

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 161749138
Product of the distinct prime numbers

The prime factorization of 161749138 is 2 × 163 × 496163. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 161749138)

Multiplication

n×y
n×2 323498276
n×3 485247414
n×4 646996552
n×5 808745690

Division

n÷y
n÷2 80874569
n÷3 53916379.333333
n÷3 40437284.5
n÷5 32349827.6

Exponentiation

ny
n2 26162783643743044
n3 4.2318077020559E+24
n4 6.8449124798931E+32
n5 1.1071586933081E+41

Nth Root

y√n
2√n 12718.063453215
3√n 544.85464574702
4√n 112.77439183261
5√n 43.829689596739

Divisors of 161749138

8 divisors

τ Total Divisors 8
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -161749137
Sum of the proper positive divisors of n
A Arithmetic Mean 0.125
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 8
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 161749138 can be divided by 8 positive divisors. The sum of these divisors (counting 161749138) is 1, the average is 0.125.

Base conversion 161749138

Base System Value
2 Binary 1001101001000001100010010010
3 Ternary 102021100201002211
4 Quaternary 21221001202102
5 Quinary 312401433023
6 Senary 24014502334
8 Octal 1151014222
10 Decimal 161749138
12 Duodecimal 462049aa
16 Hexadecimal 9a41892
20 Vigesimal 2aaicgi
36 Base36 2oaufm

Cryptographic Hash Functions

md5 a41fb1ec5e294ca8c14f3523b79e7b80
sha1 ece34a4d5f2de8e96170b88e4103fa52c8039563
sha256 176066b7ed7898d9d99382b470dbed10f02ad3676fa64ff18138d9eaade8f307
sha512 8b6ded86f07d12935a4be07c0d95d762fff6e11fa39309b16465ec46d0a839e9bca87419af4cb83e4a44d89836375a784672fafbee777bf21ee74aa304d9ce28
ripemd-160 6a485a735a2a759dd0cde595adec3ec98d99a27d

161749138 as geometric shapes

Circle

Radius = n
Diameter 323498276
Circumference 1016299807.3306
Area 8.2192808892642E+16

Sphere

Radius = n
Volume 1.7726154650912E+25
Surface area 3.2877123557057E+17
Circumference 1016299807.3306

Square

Length = n
Perimeter 646996552
Area 26162783643743044
Diagonal 228747824.66176

Cube

Length = n
Surface area 156976701862458264
Volume 4.2318077020559E+24
Space diagonal 280157725.09647

Equilateral Triangle

Length = n
Perimeter 485247414
Area 1.1328817634599E+16
Altitude 140078862.54823

Triangular Pyramid

Length = n
Surface area 1.1328817634599E+16
Volume 4.9872332046687E+23
Height 76249274.887252