61398981 (number)

61398981 is an odd 8-digits composite number following 61398980 and preceding 61398982. In scientific notation, it is written as 6.1398981 × 10^7. The sum of its digits is 45. It has a total of 4 prime factors and 16 positive divisors. There are 34945056 positive integers (up to 61398981) that are relatively prime to 61398981.

Interesting facts

Basic properties

Name

Name sixty-one million three hundred ninety-eight thousand nine hundred eighty-one

Notation

Scientific notation 6.1398981 × 10^7
Engineering notation 6.1398981 × 10^6

Prime Factorization of 61398981

Prime Factorization 21 × 3 × 269 × 3623

Composite number
ω Distinct Factors 4
Total number of distinct prime factors
Ω Total Factors 4
Total number of prime factors
rad Radical 61398981
Product of the distinct prime numbers

The prime factorization of 61398981 is 21 × 3 × 269 × 3623. Since it has a total of 4 prime factors.

Most popular turbo-numbers

7, 10, 24, 60, 847, 66, 7970, 5882, 36200, 28317, 79522, 289692, 9384403, 5049011, 5667964, 43093026, 442556907, 146546082, 9881640729, 1383896302

Basic calculations (n = 61398981)

Multiplication

n×y
n×2 122797962
n×3 184196943
n×4 245595924
n×5 306994905

Division

n÷y
n÷2 30699490.5
n÷3 20466327
n÷3 15349745.25
n÷5 12279796.2

Exponentiation

ny
n2 3769834867838361
n3 2.3146401942355E+23
n4 1.421165493077E+31
n5 8.725811310729E+38

Nth Root

y√n
2√n 7835.7501874422
3√n 394.50609849517
4√n 88.519772861447
5√n 36.110394470984

Divisors of 61398981

1, 3, 21, 63, 269, 807, 3623, 5649, 10869, 16947, 76083, 228249, 974587, 2923761, 20466327, 61398981

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 -61398980
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 61398981 can be divided by 16 positive divisors. The sum of these divisors (counting 61398981) is 1, the average is 0.0625.

Base conversion 61398981

Base System Value
2 Binary 11101010001101111111000101
3 Ternary 11021112101120100
4 Quaternary 3222031333011
5 Quinary 111204231411
6 Senary 10031554313
8 Octal 352157705
10 Decimal 61398981
12 Duodecimal 1868b999
16 Hexadecimal 3a8dfc5
20 Vigesimal j3eh91
36 Base36 10jzr9

Cryptographic Hash Functions

md5 7b51330c1b6f6e7fb154abff1ddf44e4
sha1 7b266b4a4076a0eeed9adc20c21e4401b38dc3c3
sha256 cfffd10f00fc79e54e56c9a9a7799ed3e931acc819a31642bef8b0881c85ec02
sha512 40b1b0765c011c555cf9257cdf5b8a7e596f0198c5a39a39c9b16679c7629d7b04f95e24ec04261f63d8cfddb2e3fd402e5b1a9e5981d4fef9ddc58cd33c279a
ripemd-160 7d7606079a9ceefc7133def3a0e58af953a8af69

61398981 as geometric shapes

Circle

Radius = n
Diameter 122797962
Circumference 385781175.295
Area 1.1843285526048E+16

Sphere

Radius = n
Volume 9.6955421732183E+23
Surface area 4.7373142104191E+16
Circumference 385781175.295

Square

Length = n
Perimeter 245595924
Area 3769834867838361
Diagonal 86831271.646088

Cube

Length = n
Surface area 22619009207030166
Volume 2.3146401942355E+23
Space diagonal 106346154.62496

Equilateral Triangle

Length = n
Perimeter 184196943
Area 1.6323863818102E+15
Altitude 53173077.312478

Triangular Pyramid

Length = n
Surface area 1.6323863818102E+15
Volume 2.7278296289181E+22
Height 28943757.215363