251991490 (number)

251991490 is an even 9-digits composite number following 251991489 and preceding 251991491. In scientific notation, it is written as 2.51991490 × 10^8. The sum of its digits is 40. It has a total of 4 prime factors and 16 positive divisors. There are 95491440 positive integers (up to 251991490) that are relatively prime to 251991490.

Interesting facts

Basic properties

Name

Name two hundred fifty-one million nine hundred ninety-one thousand four hundred ninety

Notation

Scientific notation 2.51991490 × 10^8
Engineering notation 2.51991490 × 10^6

Prime Factorization of 251991490

Prime Factorization 2 × 5 × 19 × 1326271

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 251991490
Product of the distinct prime numbers

The prime factorization of 251991490 is 2 × 5 × 19 × 1326271. Since it has a total of 4 prime factors.

Most popular turbo-numbers

3, 6, 64, 16, 671, 711, 9778, 5183, 56335, 45779, 175525, 502240, 3804849, 694968, 72848542, 75871273, 448676329, 367008693, 4792300443, 7255446377

Basic calculations (n = 251991490)

Multiplication

n×y
n×2 503982980
n×3 755974470
n×4 1007965960
n×5 1259957450

Division

n÷y
n÷2 125995745
n÷3 83997163.333333
n÷3 62997872.5
n÷5 50398298

Exponentiation

ny
n2 63499711032420100
n3 1.6001386797629E+25
n4 4.0322133012009E+33
n5 1.0160834377674E+42

Nth Root

y√n
2√n 15874.239824319
3√n 631.62884960357
4√n 125.99301498226
5√n 47.893566053691

Divisors of 251991490

1, 2, 5, 10, 19, 38, 95, 190, 1326271, 2652542, 6631355, 13262710, 25199149, 50398298, 125995745, 251991490

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 -251991489
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 251991490 can be divided by 16 positive divisors. The sum of these divisors (counting 251991490) is 1, the average is 0.0625.

Base conversion 251991490

Base System Value
2 Binary 1111000001010001010111000010
3 Ternary 122120011111100011
4 Quaternary 33001101113002
5 Quinary 1004002211430
6 Senary 41001015134
8 Octal 1701212702
10 Decimal 251991490
12 Duodecimal 704844aa
16 Hexadecimal f0515c2
20 Vigesimal 3ieiiea
36 Base36 4611vm

Cryptographic Hash Functions

md5 02c52c65998e939daf77020f0049b9db
sha1 accfddf84f81fab143a9a430b7bb49a4de7ab4b3
sha256 960e867d82cd78afac1d77a8843f17902a6abc32a97adc79ea9bf5db3574e3b1
sha512 63f1bc4e776b82f082d542e4947baeb2bdb722407ac8b85059d7c05a9fef4f049cf2220d2f5743887952c7f9ea46c136c3c4dc920373042b2a6c799ea078568d
ripemd-160 36c9d49e6576cba2e1a8dbdd95d20a89c6efdcc0

251991490 as geometric shapes

Circle

Radius = n
Diameter 503982980
Circumference 1583309227.5023
Area 1.9949022568453E+17

Sphere

Radius = n
Volume 6.7026452280907E+25
Surface area 7.979609027381E+17
Circumference 1583309227.5023

Square

Length = n
Perimeter 1007965960
Area 63499711032420100
Diagonal 356369782.7606

Cube

Length = n
Surface area 380998266194520600
Volume 1.6001386797629E+25
Space diagonal 436462063.75498

Equilateral Triangle

Length = n
Perimeter 755974470
Area 2.7496181443523E+16
Altitude 218231031.87749

Triangular Pyramid

Length = n
Surface area 2.7496181443523E+16
Volume 1.8857815188321E+24
Height 118789927.58687