Properties of the Number -390781

Three Hundred Ninety Thousand Seven Hundred Eighty-One

Basics

Value: -390782 → -390781 → -390780

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 28

Digital Root: 1

Palindrome: No

Factorization: 390781

Divisors: 1, 390781

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

375 Try Today's Challenge

Representations

Binary: -1011111011001111101

Octal: -1373175

Duodecimal: -16A191

Hexadecimal: -5f67d

Square: 152709789961

Square Root: 625.1247875424554

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

Weak Goodstein numbers: a(n) = g_n(n), where g_n(n) is the weak Goodstein function. A266202

Number of polyhexes with n cells that tile the plane both by translation and by 180-degree rotation (Conway criterion). A75209

Primes which can be expressed as sum of distinct powers of 5. A77719

Number of trees with n nodes and 11 leaves. A55298

Number of n-ary words beginning with the first character of the alphabet, that can be built by inserting four doublets into the initially empty word. A194716

Primes whose base-5 representation also is the base-2 representation of a prime. A235462