Live analysis

2,740

2,740 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

Properties

Parity: Even
Digit count: 4
Digit sum: 13
Digital root: 4
Palindrome: No
Divisor count: 12
σ(n) — sum of divisors: 5,796

Primality

Prime factorization: 2 ² × 5 × 137

Divisors & multiples

All divisors (12)

1 · 2 · 4 · 5 · 10 · 20 · 137 · 274 · 548 · 685 · 1370 · 2740

Aliquot sum (sum of proper divisors): 3,056

Factor pairs (a × b = 2,740)

1 × 2740

2 × 1370

4 × 685

5 × 548

10 × 274

20 × 137

First multiples

2,740 · 5,480 · 8,220 · 10,960 · 13,700 · 16,440 · 19,180 · 21,920 · 24,660 · 27,400

Representations

In words: two thousand seven hundred forty
Ordinal: 2740th
Roman numeral: MMDCCXL
Binary: 101010110100
Octal: 5264
Hexadecimal: AB4

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 2740, here are decompositions:

11 + 2729 = 2740
29 + 2711 = 2740
41 + 2699 = 2740
47 + 2693 = 2740
53 + 2687 = 2740
83 + 2657 = 2740
107 + 2633 = 2740
131 + 2609 = 2740

Showing the first eight; more decompositions exist.

Hex color

#000AB4

RGB(0, 10, 180)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.10.180.