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Live analysis

2,421

2,421 is a composite number, odd.

This number doesn't have a permanent NumberWiki page yet — what you see below is computed live. Pages get added to the permanent index when they're notable (years, primes, curated, etc.).
Deficient Number Harshad / Niven

Properties

Parity
Odd
Digit count
4
Digit sum
9
Digital root
9
Palindrome
No
Divisor count
6
σ(n) — sum of divisors
3,510

Primality

Prime factorization: 3 2 × 269

Divisors & multiples

All divisors (6)
1 · 3 · 9 · 269 · 807 · 2421
Aliquot sum (sum of proper divisors): 1,089
Factor pairs (a × b = 2,421)
1 × 2421
3 × 807
9 × 269
First multiples
2,421 · 4,842 · 7,263 · 9,684 · 12,105 · 14,526 · 16,947 · 19,368 · 21,789 · 24,210

Representations

In words
two thousand four hundred twenty-one
Ordinal
2421st
Roman numeral
MMCDXXI
Binary
100101110101
Octal
4565
Hexadecimal
975

Also seen as

Unicode codepoint
U+0975
Other letter (Lo)

UTF-8 encoding: E0 A5 B5 (3 bytes).

Hex color
#000975
RGB(0, 9, 117)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.9.117.