Properties of the Number 83947

Eighty-Three Thousand Nine Hundred Forty-Seven

Basics

Value: 83946 → 83947 → 83948

Parity: odd

Prime: No

Previous Prime: 83939

Next Prime: 83969

Digit Sum: 31

Digital Root: 4

Palindrome: No

Factorization: 127 × 661

Divisors: 1, 127, 661, 83947

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 10100011111101011

Octal: 243753

Duodecimal: 406B7

Hexadecimal: 147eb

Square: 7047098809

Square Root: 289.73608681004856

Classification

Fibonacci: No

Bell Number: No

Factorial Number: No

Regular Number: No

Perfect Number: No

Special

Kaprekar Constant: No

Munchausen Constant: No

Armstrong Number: No

Kaprekar Number: No

Catalan Number: No

Vampire Number: No

Taxicab Number: No

Super Prime: No

Friedman Number: No

Fermat Number: No

Cullen Number: No

OEIS Sequences

a(n) = floor( n*(n-1)*(n-2)*(n-3)/32 ). A11942

Integer coefficients of A(x), where 1<=a(n)<=7, such that A(x)^1/7 consists entirely of integer coefficients. A83947

Least number k coprime to 2 and 3 such that σ(k)/k >= n. A358412

Smallest 4-abundant number (σ(x) > 4x) which is not divisible by any of the first n primes. A358414

T(n,k)=Number of nXk 0..2 arrays with no element equal to one plus the sum of elements to its left or one plus the sum of the elements above it or one plus the sum of the elements diagonally to its northwest, modulo 3. A239361