Properties of the Number -1020100

Twenty Thousand One Hundred

Basics

Value: -1020101 → -1020100 → -1020099

Parity: even

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 4

Digital Root: 4

Palindrome: No

Factorization: 2 ² × 5 ² × 101 ²

Divisors: 1, 2, 4, 5, 10, 20, 25, 50, 100, 101

Polygonal

Triangular: No

Square: Yes

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -11111001000011000100

Octal: -3710304

Duodecimal: -412404

Hexadecimal: -f90c4

Square: 1040604010000

Square Root: 1010

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

Squares whose largest decimal digit is 2. A277946

The first of three consecutive squares the sum of which is equal to the sum of three consecutive primes. A298222

a(n) = p²*(p-1), where p = prime(n). A135177

Write n in binary then square as if written in base 10. A63009

a(n) = n² written in base 3. A1738

Base 2i representation of negative integers. A212542

Perfect powers k such that A052409(k) is equal to A052409(A366275(k)). A366278

Squares in every base >=3 (involving no carries and no digit apart from 0, 1 and 2). A66139

Squares whose digit reversal is a brilliant number (A078972). A115667

Non-palindromic squares whose digit reversal gives a square (possibly with fewer digits). A161902