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Number

1,368

1,368 is a composite number, even, a calendar year.

Abundant Number Harshad / Niven Year

Properties

Parity
Even
Digit count
4
Digit sum
18
Digital root
9
Palindrome
No
Divisor count
24
σ(n) — sum of divisors
3,900

Primality

Prime factorization: 2 3 × 3 2 × 19

Divisors & multiples

All divisors (24)
1 · 2 · 3 · 4 · 6 · 8 · 9 · 12 · 18 · 19 · 24 · 36 · 38 · 57 · 72 · 76 · 114 · 152 · 171 · 228 · 342 · 456 · 684 · 1368
Aliquot sum (sum of proper divisors): 2,532
Factor pairs (a × b = 1,368)
1 × 1368
2 × 684
3 × 456
4 × 342
6 × 228
8 × 171
9 × 152
12 × 114
18 × 76
19 × 72
24 × 57
36 × 38
First multiples
1,368 · 2,736 · 4,104 · 5,472 · 6,840 · 8,208 · 9,576 · 10,944 · 12,312 · 13,680

Representations

In words
one thousand three hundred sixty-eight
Ordinal
1368th
Roman numeral
MCCCLXVIII
Binary
10101011000
Octal
2530
Hexadecimal
558

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1368, here are decompositions:

  • 7 + 1361 = 1368
  • 41 + 1327 = 1368
  • 47 + 1321 = 1368
  • 61 + 1307 = 1368
  • 67 + 1301 = 1368
  • 71 + 1297 = 1368
  • 79 + 1289 = 1368
  • 89 + 1279 = 1368

Showing the first eight; more decompositions exist.

Hex color
#000558
RGB(0, 5, 88)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.5.88.

Possible US bank routing number

This passes the ABA routing number checksum and matches the Federal Reserve numbering scheme.

Routing number
000001368
Federal Reserve
United States Government

Banks operate many routing numbers per state and division; an unmatched checksum-valid number can still be a real RTN at a smaller institution.

Look up 000001368 on FedACH ↗ Routing Number Lookup (Wise) ↗