Properties of the Number -2215441

Two Hundred Fifteen Thousand Four Hundred Forty-One

Basics

Value: -2215442 → -2215441 → -2215440

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 19

Digital Root: 1

Palindrome: No

Factorization: 631 × 3511

Divisors: 1, 631, 3511, 2215441

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

Today's Target

8109 Try Today's Challenge

Representations

Binary: -1000011100111000010001

Octal: -10347021

Duodecimal: -8AA101

Hexadecimal: -21ce11

Square: 4908178824481

Square Root: 1488.435756087578

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

Numbers k such that 2^{2^k-2} == 1 (mod k²) and 2^k-1 =/= 1 (mod k). A374953

Composite numbers k such that 2^{2^(k-1}-1) == 1 (mod k²). A376253

Numbers k such that 2^{2^(k-1}-1) == 1 (mod k²) and 2^k-1 =/= 1 (mod k). A376473