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11,240

11,240 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 Evil Number Gapful Number Harshad / Niven Recamán's Sequence Semiperfect Number

Properties

Parity
Even
Digit count
5
Digit sum
8
Digit product
0
Digital root
8
Palindrome
No
Bit width
14 bits
Reversed
4,211
Recamán's sequence
a(173,779) = 11,240
Square (n²)
126,337,600
Cube (n³)
1,420,034,624,000
Divisor count
16
σ(n) — sum of divisors
25,380
φ(n) — Euler's totient
4,480
Sum of prime factors
292

Primality

Prime factorization: 2 3 × 5 × 281

Nearest primes: 11,239 (−1) · 11,243 (+3)

Divisors & multiples

All divisors (16)
1 · 2 · 4 · 5 · 8 · 10 · 20 · 40 · 281 · 562 · 1124 · 1405 · 2248 · 2810 · 5620 (half) · 11240
Aliquot sum (sum of proper divisors): 14,140
Factor pairs (a × b = 11,240)
1 × 11240
2 × 5620
4 × 2810
5 × 2248
8 × 1405
10 × 1124
20 × 562
40 × 281
First multiples
11,240 · 22,480 (double) · 33,720 · 44,960 · 56,200 · 67,440 · 78,680 · 89,920 · 101,160 · 112,400

Sums & aliquot sequence

As a sum of two squares: 2² + 106² = 62² + 86²
As consecutive integers: 2,246 + 2,247 + 2,248 + 2,249 + 2,250 695 + 696 + … + 710 101 + 102 + … + 180
Aliquot sequence: 11,240 14,140 20,132 20,188 21,308 21,364 22,526 16,114 11,534 6,226 3,998 2,002 2,030 2,290 1,850 1,684 1,270 — unresolved within range

Representations

In words
eleven thousand two hundred forty
Ordinal
11240th
Binary
10101111101000
Octal
25750
Hexadecimal
0x2BE8
Base64
K+g=
One's complement
54,295 (16-bit)
In other bases
ternary (3) 120102022
quaternary (4) 2233220
quinary (5) 324430
senary (6) 124012
septenary (7) 44525
nonary (9) 16368
undecimal (11) 8499
duodecimal (12) 6608
tridecimal (13) 5168
tetradecimal (14) 414c
pentadecimal (15) 34e5

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋
Egyptian hieroglyphic
𓂍𓆼𓍢𓍢𓎆𓎆𓎆𓎆
Greek (Milesian)
͵ιασμʹ
Mayan (base 20)
𝋡·𝋨·𝋢·𝋠
Chinese
一萬一千二百四十
Chinese (financial)
壹萬壹仟貳佰肆拾
In other modern scripts
Eastern Arabic ١١٢٤٠ Devanagari ११२४० Bengali ১১২৪০ Tamil ௧௧௨௪௦ Thai ๑๑๒๔๐ Tibetan ༡༡༢༤༠ Khmer ១១២៤០ Lao ໑໑໒໔໐ Burmese ၁၁၂၄၀

Digit at this position in famous constants

π — Pi (π)
Digit 11,240 = 1
e — Euler's number (e)
Digit 11,240 = 9
φ — Golden ratio (φ)
Digit 11,240 = 1
√2 — Pythagoras's (√2)
Digit 11,240 = 5
ln 2 — Natural log of 2
Digit 11,240 = 4
γ — Euler-Mascheroni (γ)
Digit 11,240 = 6

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 11240, here are decompositions:

  • 43 + 11197 = 11240
  • 67 + 11173 = 11240
  • 79 + 11161 = 11240
  • 109 + 11131 = 11240
  • 127 + 11113 = 11240
  • 157 + 11083 = 11240
  • 181 + 11059 = 11240
  • 193 + 11047 = 11240

Showing the first eight; more decompositions exist.

Unicode codepoint
Left Half Black Star
U+2BE8
Other symbol (So)

UTF-8 encoding: E2 AF A8 (3 bytes).

Hex color
#002BE8
RGB(0, 43, 232)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.43.232.

Address
0.0.43.232
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.43.232

Unspecified address (0.0.0.0/8) — "this network" placeholder.

Position in π

The digit sequence 11240 first appears in π at position 48,667 of the decimal expansion (the 48,667ordinal-suffix:th digit after the integer 3).

Search range: the first 1,000,000 fractional digits of π. Any 6-digit-or-shorter string is virtually guaranteed to appear in there — the more interesting signal is the position.