161855213 (number)

161855213 is an odd 9-digits composite number following 161855212 and preceding 161855214. In scientific notation, it is written as 1.61855213 × 10^8. The sum of its digits is 32. It has a total of 3 prime factors and 8 positive divisors. There are 149289984 positive integers (up to 161855213) that are relatively prime to 161855213.

Interesting facts

Basic properties

Name

Name one hundred sixty-one million eight hundred fifty-five thousand two hundred thirteen

Notation

Scientific notation 1.61855213 × 10^8
Engineering notation 1.61855213 × 10^6

Prime Factorization of 161855213

Prime Factorization 13 × 1553 × 8017

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 3
Total number of prime factors
rad Radical 161855213
Product of the distinct prime numbers

The prime factorization of 161855213 is 13 × 1553 × 8017. Since it has a total of 3 prime factors.

Most popular turbo-numbers

Basic calculations (n = 161855213)

Multiplication

n×y
n×2 323710426
n×3 485565639
n×4 647420852
n×5 809276065

Division

n÷y
n÷2 80927606.5
n÷3 53951737.666667
n÷3 40463803.25
n÷5 32371042.6

Exponentiation

ny
n2 26197109975275369
n3 4.2401388150326E+24
n4 6.8628857105667E+32
n5 1.1107938284784E+41

Nth Root

y√n
2√n 12722.233019403
3√n 544.97372485059
4√n 112.79287663414
5√n 43.835436786832

Divisors of 161855213

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 -161855212
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 161855213 can be divided by 8 positive divisors. The sum of these divisors (counting 161855213) is 1, the average is 0.125.

Base conversion 161855213

Base System Value
2 Binary 1001101001011011011011101101
3 Ternary 102021120002121112
4 Quaternary 21221123123231
5 Quinary 312413331323
6 Senary 24021041405
8 Octal 1151333355
10 Decimal 161855213
12 Duodecimal 46256265
16 Hexadecimal 9a5b6ed
20 Vigesimal 2abbi0d
36 Base36 2od4a5

Cryptographic Hash Functions

md5 526e85918800908d8b0646aa83dda3c1
sha1 dbeec8a6159ec86842c36109b132333ea67516e1
sha256 9a661b45d15119f61952b4685ce8eef7d748b8054adad18f6d565ddc2e89d101
sha512 29dade5d9a7178597eb96a5e4b9a43ff3c7970c3845ccd321a524a52dcc251dd68a9bea8a10a91151598e38eadca9f254f8fd0539e45eb555a1f04c76f498f54
ripemd-160 db624795067dd9f39f1f85193e032aedacb4391b

161855213 as geometric shapes

Circle

Radius = n
Diameter 323710426
Circumference 1016966296.212
Area 8.2300648243609E+16

Sphere

Radius = n
Volume 1.7761051935343E+25
Surface area 3.2920259297444E+17
Circumference 1016966296.212

Square

Length = n
Perimeter 647420852
Area 26197109975275369
Diagonal 228897837.36539

Cube

Length = n
Surface area 157182659851652214
Volume 4.2401388150326E+24
Space diagonal 280341452.38588

Equilateral Triangle

Length = n
Perimeter 485565639
Area 1.1343681372162E+16
Altitude 140170726.19294

Triangular Pyramid

Length = n
Surface area 1.1343681372162E+16
Volume 4.9970515154698E+23
Height 76299279.121795