Properties of the Number -141421

One Hundred Forty-One Thousand Four Hundred Twenty-One

Basics

Value: -141422 → -141421 → -141420

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 13

Digital Root: 4

Palindrome: No

Factorization: 7 × 89 × 227

Divisors: 1, 7, 89, 227, 623, 1589, 20203, 141421

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

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Representations

Binary: -100010100001101101

Octal: -424155

Duodecimal: -69A11

Hexadecimal: -2286d

Square: 19999899241

Square Root: 376.0598356644857

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

Index of smallest triangular number with n digits. A68092

Decimal expansion of sqrt(2) rounded to n places. A11548

Decimal expansion of sqrt(2) truncated to n places. A11547

a(n) = the largest integer whose square has n digits and first digit 1. A83377

a(n)/100000 gives sqrt(n) to 5 places after the decimal point. A27663

Sum{T(n-k,k)}, 0<=k<=[ n/2 ], T given by A026907. A26918

Triangular number index of A077206(n). A77207

Numbers k such that k and k² use only the digits 1, 2, 4, 8 and 9. A137000

Number of triangular numbers <= 10ⁿ. A236043