Properties of the Number -380689

Three Hundred Eighty Thousand Six Hundred Eighty-Nine

Basics

Value: -380690 → -380689 → -380688

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 34

Digital Root: 7

Palindrome: No

Factorization: 617 ²

Divisors: 1, 617, 380689

Polygonal

Triangular: No

Square: Yes

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

375 Try Today's Challenge

Representations

Binary: -1011100111100010001

Octal: -1347421

Duodecimal: -164381

Hexadecimal: -5cf11

Square: 144924114721

Square Root: 617

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

Squares of lesser of twin primes. A108570

a(n) = (T(n,n+1) - 1)/n³ for n >= 1, where T(n,x) is the n-th Chebyshev polynomial of the first kind. A370259

Numbers n for which the absolute value of the abundance of both n and n² is a prime number. A125237

"BGJ" (reversible, element, labeled) transform of 1,1,1,1... A32049

Perfect squares using only the curved digits 0, 3, 6, 8 and 9. A79655

Squares of A006450: a(n) = prime(prime(n))². A92769

Squares s such that s + 1234567890 is prime. A241538

Composite numbers k such that τ(k^k-1) is a prime. A283549

Perfect powers m^k such that m, k and m+k are primes. A258400