Properties of the Number -421409

Four Hundred Twenty-One Thousand Four Hundred Nine

Basics

Value: -421410 → -421409 → -421408

Parity: odd

Prime: No

Previous Prime:

Next Prime: 1

Digit Sum: 20

Digital Root: 2

Palindrome: No

Factorization: 421409

Divisors: 1, 421409

Polygonal

Triangular: No

Square: No

Pentagonal: No

Hexagonal: No

Heptagonal: No

Tetrahedral: No

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Representations

Binary: -1100110111000100001

Octal: -1467041

Duodecimal: -183A55

Hexadecimal: -66e21

Square: 177585545281

Square Root: 649.1602267545355

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

Numerators of the partial alternating sums of the reciprocals of the sum of bi-unitary divisors function (A188999). A379617

Primes p such that adding their adjacent digits in pairs, the digits of their index π(p) is obtained, in some order. A115998