Properties of the Number -16387

Sixteen Thousand Three Hundred Eighty-Seven

Basics

Value: -16388 → -16387 → -16386

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 25

Digital Root: 7

Palindrome: No

Factorization: 7 × 2341

Divisors: 1, 7, 2341, 16387

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -100000000000011

Octal: -40003

Duodecimal: -9597

Hexadecimal: -4003

Square: 268533769

Square Root: 128.0117182136073

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) = -3a(n-1) - 3a(n-2) - 2a(n-3), n > 3. A158927

Numbers that are the sum of 11 positive 11th powers. A4822

Numbers that are the sum of 4 positive 7th powers. A3371

a(n) = 2ⁿ + 3. A62709

a(0)=4; if n > 0 is even then a(n) = 2^n/2+1+3, otherwise a(n) = 3*(2^(n-1/2)+1). A343177

Numbers k such that the digits of σ(k) are a permutation of those of k, in base 10. A115920

a(n) = smallest number that leads to a new fixed point under the base-2 Kaprekar map of A164884. A164887

Smallest number > 1 equal to sum of n-th powers of its base-5 digits, or 0 if no such number exists (written in base 10). A33837

Base 5 perfect digital invariants (written in base 10): numbers equal to the sum of the k-th powers of their base-5 digits, for some k. A162222

Numbers n such that m + (sum of digits in base-4 representation of m) = n has exactly three solutions. A230635