Properties of the Number -29581

Twenty-Nine Thousand Five Hundred Eighty-One

Basics

Value: -29582 → -29581 → -29580

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 29581

Divisors: 1, 29581

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

8109 Try Today's Challenge

Representations

Binary: -111001110001101

Octal: -71615

Duodecimal: -15151

Hexadecimal: -738d

Square: 875035561

Square Root: 171.9912788486672

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

Primes of form k² - 3. A28874

Primes p such that (p+nextprime(p))/2 is a perfect square. A225195

a(n) = n³ - 7·n + 7. A106734

Numbers k such that 6·p(k)*p(k+1)*p(k+2)*p(k+3)*p(k+4)*p(k+5)*p(k+6)-1 and 6·p(k)*p(k+1)*p(k+2)*p(k+3)*p(k+4)*p(k+5)*p(k+6)+1 are twin primes with p(h) = h-th prime. A129313

G.f.: ∑_n>=0 1/(1+x)^n²-n * ∏_k=1..n ((1+x)^2·k-1 - 1). A207557

Lesser of consecutive primes whose average is a perfect power. A242380

Primes of the form 7n² + 6. A201607

Primes of the form n followed by the least k == 1 (mod n). A90920

Primes p such that the sum of the digits of p is not prime, but the sum of each digit raised to the 4th power is prime. A91368

Number of binary strings of length n with equal numbers of 0010 and 0101 substrings. A164167