Live analysis

2,440

2,440 is a composite number, even.

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.).

Abundant Number Harshad / Niven

Properties

Parity: Even
Digit count: 4
Digit sum: 10
Digital root: 1
Palindrome: No
Divisor count: 16
σ(n) — sum of divisors: 5,580

Primality

Prime factorization: 2 ³ × 5 × 61

Divisors & multiples

All divisors (16)

1 · 2 · 4 · 5 · 8 · 10 · 20 · 40 · 61 · 122 · 244 · 305 · 488 · 610 · 1220 · 2440

Aliquot sum (sum of proper divisors): 3,140

Factor pairs (a × b = 2,440)

1 × 2440

2 × 1220

4 × 610

5 × 488

8 × 305

10 × 244

20 × 122

40 × 61

First multiples

2,440 · 4,880 · 7,320 · 9,760 · 12,200 · 14,640 · 17,080 · 19,520 · 21,960 · 24,400

Representations

In words: two thousand four hundred forty
Ordinal: 2440th
Roman numeral: MMCDXL
Binary: 100110001000
Octal: 4610
Hexadecimal: 988

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 2440, here are decompositions:

3 + 2437 = 2440
17 + 2423 = 2440
23 + 2417 = 2440
29 + 2411 = 2440
41 + 2399 = 2440
47 + 2393 = 2440
59 + 2381 = 2440
83 + 2357 = 2440

Showing the first eight; more decompositions exist.

Unicode codepoint

ঈ

U+0988

Other letter (Lo)

UTF-8 encoding: E0 A6 88 (3 bytes).

Lookup U+0988 on Compart ↗ Lookup on FileFormat.Info ↗

Hex color

#000988

RGB(0, 9, 136)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.9.136.