Properties of the Number -205120

Two Hundred Five Thousand One Hundred Twenty

Basics

Value: -205121 → -205120 → -205119

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 10

Digital Root: 1

Palindrome: No

Factorization: 2 ⁶ × 5 × 641

Divisors: 1, 2, 4, 5, 8, 10, 16, 20, 32, 40

Polygonal

Triangular: Yes

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -110010000101000000

Octal: -620500

Duodecimal: -9A854

Hexadecimal: -32140

Square: 42074214400

Square Root: 452.90175535098115

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

Smallest triangular number whose decimal expansion ends (nontrivially) with the n-th triangular number. A229262

Smallest number m in a set of at least three consecutive triangular numbers with three distinct prime factors. A349539

Triangular numbers which are 8-almost primes. A76582