245812981 (number)

245812981 is an odd 9-digits composite number following 245812980 and preceding 245812982. In scientific notation, it is written as 2.45812981 × 10^8. The sum of its digits is 40. It has a total of 4 prime factors and 12 positive divisors. There are 233874000 positive integers (up to 245812981) that are relatively prime to 245812981.

Interesting facts

Basic properties

Name

Name two hundred forty-five million eight hundred twelve thousand nine hundred eighty-one

Notation

Scientific notation 2.45812981 × 10^8
Engineering notation 2.45812981 × 10^6

Prime Factorization of 245812981

Prime Factorization 31 × 61 × 61 × 2131

Composite number
ω Distinct Factors 3
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 4029721
Product of the distinct prime numbers

The prime factorization of 245812981 is 31 × 61 × 61 × 2131. Since it has a total of 4 prime factors.

Most popular turbo-numbers

6, 4, 74, 22, 984, 998, 1257, 9441, 92473, 89353, 673677, 710470, 902888, 9835079, 83655474, 84426264, 370403249, 334206810, 5401003528, 4662110267

Basic calculations (n = 245812981)

Multiplication

n×y
n×2 491625962
n×3 737438943
n×4 983251924
n×5 1229064905

Division

n÷y
n÷2 122906490.5
n÷3 81937660.333333
n÷3 61453245.25
n÷5 49162596.2

Exponentiation

ny
n2 60424021628106361
n3 1.4853008880413E+25
n4 3.6510623897139E+33
n5 8.9747852983255E+41

Nth Root

y√n
2√n 15678.424059835
3√n 626.42383098535
4√n 125.21351388662
5√n 47.65637041531

Divisors of 245812981

1, 31, 61, 1891, 2131, 3721, 66061, 115351, 129991, 4029721, 7929451, 245812981

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 -245812980
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 245812981 can be divided by 12 positive divisors. The sum of these divisors (counting 245812981) is 1, the average is 0.083333333333333.

Base conversion 245812981

Base System Value
2 Binary 1110101001101100111011110101
3 Ternary 122010112121000111
4 Quaternary 32221230323311
5 Quinary 1000412003411
6 Senary 40220343021
8 Octal 1651547365
10 Decimal 245812981
12 Duodecimal 6a3a4a71
16 Hexadecimal ea6cef5
20 Vigesimal 3gg6c91
36 Base36 42cmid

Cryptographic Hash Functions

md5 de00533b1b680f2a9c408ad35ea03401
sha1 49eee461f315fd0d6d33bd269be130eedf1dfbc7
sha256 4a0b52f6f0b0f13a4074278a25d546c2f52fb4d2f8d71764566e7ed1e4a632e4
sha512 cb498f732d71d2dce6e19d4a514c34e2154c58bf3019ce533404e22b8dffa19517275283a6dbf98a2374e9ccd0884ece464631710beb3f55c5d10cb039a784d1
ripemd-160 800d5e282702b9e6c197987acb7c04f06d9720b9

245812981 as geometric shapes

Circle

Radius = n
Diameter 491625962
Circumference 1544488510.5332
Area 1.8982766244721E+17

Sphere

Radius = n
Volume 6.221613810988E+25
Surface area 7.5931064978884E+17
Circumference 1544488510.5332

Square

Length = n
Perimeter 983251924
Area 60424021628106361
Diagonal 347632051.53756

Cube

Length = n
Surface area 362544129768638166
Volume 1.4853008880413E+25
Space diagonal 425760572.25196

Equilateral Triangle

Length = n
Perimeter 737438943
Area 2.616436886438E+16
Altitude 212880286.12598

Triangular Pyramid

Length = n
Surface area 2.616436886438E+16
Volume 1.750443883394E+24
Height 115877350.51252