Properties of the Number 15950

Fifteen Thousand Nine Hundred Fifty

Basics

Value: 15949 → 15950 → 15951

Parity: even

Prime: No

Previous Prime: 15937

Next Prime: 15959

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 2 × 5 ² × 11 × 29

Divisors: 1, 2, 5, 10, 11, 22, 25, 29, 50, 55

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: 11111001001110

Octal: 37116

Duodecimal: 9292

Hexadecimal: 3e4e

Square: 254402500

Square Root: 126.29330940315089

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

-10-Knödel numbers. A225514

Magic sums of 4 X 4 magic squares composed of squares. A271580

a(n) = n*(2·n² + n + 1)/2. A85786

a(n) = 2662·n - 22. A157609

The smallest k >= 0 that can be represented as a linear combination of 1², 2², ..., n² with coefficients +-1 and that cannot be represented using 1², 2², ..., m² with 1<=m<n. A392127

Numbers n such that the numerator of ∑_i=1..n (1/i²), in reduced form, is prime. A111354

a(1)=2³*5·7*29=8120; for n>1, a(n) = (-1)σ(a(n-1)). A126602

Largest integer terms forming a self-convolution fifth-root of a sequence (A132839) such that: A132839(n) <= 5·A132839(n-1) for n>0 with A132839(0)=1. A132840

a(n) = 5·p⁵ + 3·p³ - 2·p², where p = prime(n). A133063

a(n) = 5·n⁵ + 3·n³ - 2·n². Coefficients and exponents are the prime numbers in decreasing order. A134632