Properties of the Number -100021

One Hundred Thousand Twenty-One

Basics

Value: -100022 → -100021 → -100020

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 4

Digital Root: 4

Palindrome: No

Factorization: 29 × 3449

Divisors: 1, 29, 3449, 100021

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: -11000011010110101

Octal: -303265

Duodecimal: -49A71

Hexadecimal: -186b5

Square: 10004200441

Square Root: 316.26096818924714

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

Number of primes less than 100000n. A38814

Coefficients of monic irreducible polynomials over GF(3) listed in lexicographic order. A58944

Coefficients of monic primitive irreducible polynomials over GF(3) listed in lexicographic order. A58949

Integers whose decimal representation consists of three distinct digits, one appearing once, one appearing twice, and one appearing three times. A182040

Smallest n-digit squarefree number whose internal as well as external digits form a squarefree number greater than 1; or 0 if no such number exists. A77379

First gap of length at least n in A137292, lower end. A138845

Lexicographically earliest strictly increasing decimal autovarious sequence: a(n) = number of distinct n-digit endings (left-zero-padded) of terms in the sequence. A37089

Least hypotenuse of primitive Pythagorean triangle exceeding 10ⁿ. A117340

Semiprimes with sum of digits 4. A382073

Lexicographically earliest strictly increasing base 4 autovarious sequence: a(n) = number of distinct a(k) mod 4ⁿ (written in base 4). A38113