31945947 (number)

31945947 is an odd 8-digits composite number following 31945946 and preceding 31945948. In scientific notation, it is written as 3.1945947 × 10^7. The sum of its digits is 42. It has a total of 5 prime factors and 32 positive divisors. There are 18469920 positive integers (up to 31945947) that are relatively prime to 31945947.

Interesting facts

Basic properties

Name

Name thirty-one million nine hundred forty-five thousand nine hundred forty-seven

Notation

Scientific notation 3.1945947 × 10^7
Engineering notation 3.1945947 × 10^6

Prime Factorization of 31945947

Prime Factorization 11 × 3 × 43 × 47 × 479

Composite number
ω Distinct Factors 5
Total number of distinct prime factors
Ω Total Factors 5
Total number of prime factors
rad Radical 31945947
Product of the distinct prime numbers

The prime factorization of 31945947 is 11 × 3 × 43 × 47 × 479. Since it has a total of 5 prime factors.

Most popular turbo-numbers

10, 8, 48, 9, 419, 641, 8545, 9362, 83097, 95617, 131208, 567652, 2816977, 8936676, 49801801, 54481870, 333663434, 817448659, 7107965122, 2302668024

Basic calculations (n = 31945947)

Multiplication

n×y
n×2 63891894
n×3 95837841
n×4 127783788
n×5 159729735

Division

n÷y
n÷2 15972973.5
n÷3 10648649
n÷3 7986486.75
n÷5 6389189.4

Exponentiation

ny
n2 1020543529726809
n3 3.2602229511846E+22
n4 1.0415090960673E+30
n5 3.3271994382982E+37

Nth Root

y√n
2√n 5652.0745748796
3√n 317.3013517552
4√n 75.180280492158
5√n 31.687148077563

Divisors of 31945947

1, 3, 11, 33, 43, 47, 129, 141, 473, 479, 517, 1419, 1437, 1551, 2021, 5269, 6063, 15807, 20597, 22231, 22513, 61791, 66693, 67539, 226567, 247643, 679701, 742929, 968059, 2904177, 10648649, 31945947

32 divisors

τ Total Divisors 32
Total number of the positive divisors of n
σ Sum of Divisors 1
Sum of all the positive divisors of n
s Aliquot Sum -31945946
Sum of the proper positive divisors of n
A Arithmetic Mean 0.03125
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 32
Returns the total number of divisors (τ(n)) divided by the sum of the reciprocal of each divisors

The number 31945947 can be divided by 32 positive divisors. The sum of these divisors (counting 31945947) is 1, the average is 0.03125.

Base conversion 31945947

Base System Value
2 Binary 1111001110111010011011011
3 Ternary 2020010000121020
4 Quaternary 1321313103123
5 Quinary 31134232242
6 Senary 3100413523
8 Octal 171672333
10 Decimal 31945947
12 Duodecimal a8472a3
16 Hexadecimal 1e774db
20 Vigesimal 9jd4h7
36 Base36 j0pnf

Cryptographic Hash Functions

md5 c02bd350ccf80479880b2f8d1b34f10d
sha1 452ed34212ce57ba13336f6ce383dc05d51bcb09
sha256 73d5ad3a6d77396c44de038822138f23edaaba7836e75f809dbcaf0459175f84
sha512 c3884a10c549ee5d921a2322fdaddb1fb1cf0b4c1d72476b377621b8c955e4553c6aff7ce6d65fc0eeda266bbc8b4d296f49e04cb151e8ae53613160ce1362b1
ripemd-160 f65cee8595ab54b9298ee1582da3e7eaf1906486

31945947 as geometric shapes

Circle

Radius = n
Diameter 63891894
Circumference 200722304.81434
Area 3.2061320556583E+15

Sphere

Radius = n
Volume 1.3656389963342E+23
Surface area 1.2824528222633E+16
Circumference 200722304.81434

Square

Length = n
Perimeter 127783788
Area 1020543529726809
Diagonal 45178391.510252

Cube

Length = n
Surface area 6123261178360854
Volume 3.2602229511846E+22
Space diagonal 55332003.299903

Equilateral Triangle

Length = n
Perimeter 95837841
Area 4.4190831120563E+14
Altitude 27666001.649951

Triangular Pyramid

Length = n
Surface area 4.4190831120563E+14
Volume 3.8422095949377E+21
Height 15059463.836751