Properties of the Number -201601

Two Hundred One Thousand Six Hundred One

Basics

Value: -201602 → -201601 → -201600

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 10

Digital Root: 1

Palindrome: No

Factorization: 449 ²

Divisors: 1, 449, 201601

Polygonal

Triangular: No

Square: Yes

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

4938 Try Today's Challenge

Representations

Binary: -110001001110000001

Octal: -611601

Duodecimal: -98801

Hexadecimal: -31381

Square: 40642963201

Square Root: 449

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) = (14·n+1)². A134934

a(n) = 5·n! + 1. A173319

Square numbers in A070552. A263951

a(n) = (1-2·n²)². A239607

Composite numbers whose prime factors have no digits other than 4's and 9's. A36319

"Binary prime squares": squares whose binary expansions, read as decimal expansions, are primes. A108324

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

a(n) = (12·n + 5)². A17582

Smallest square which is one more than the product of n (not necessarily distinct) numbers > 1. A81949

Squares pertaining to A087334: a(n) = n-th partial product of A087334 + 1. A87335