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10,440

10,440 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 Gapful Number Harshad / Niven Odious Number Pernicious Number Practical Number Recamán's Sequence Semiperfect Number Triangular

Properties

Parity
Even
Digit count
5
Digit sum
9
Digit product
0
Digital root
9
Palindrome
No
Bit width
14 bits
Reversed
4,401
Recamán's sequence
a(50,639) = 10,440
Square (n²)
108,993,600
Cube (n³)
1,137,893,184,000
Divisor count
48
σ(n) — sum of divisors
35,100
φ(n) — Euler's totient
2,688
Sum of prime factors
46

Primality

Prime factorization: 2 3 × 3 2 × 5 × 29

Nearest primes: 10,433 (−7) · 10,453 (+13)

Divisors & multiples

All divisors (48)
1 · 2 · 3 · 4 · 5 · 6 · 8 · 9 · 10 · 12 · 15 · 18 · 20 · 24 · 29 · 30 · 36 · 40 · 45 · 58 · 60 · 72 · 87 · 90 · 116 · 120 · 145 · 174 · 180 · 232 · 261 · 290 · 348 · 360 · 435 · 522 · 580 · 696 · 870 · 1044 · 1160 · 1305 · 1740 · 2088 · 2610 · 3480 · 5220 (half) · 10440
Aliquot sum (sum of proper divisors): 24,660
Factor pairs (a × b = 10,440)
1 × 10440
2 × 5220
3 × 3480
4 × 2610
5 × 2088
6 × 1740
8 × 1305
9 × 1160
10 × 1044
12 × 870
15 × 696
18 × 580
20 × 522
24 × 435
29 × 360
30 × 348
36 × 290
40 × 261
45 × 232
58 × 180
60 × 174
72 × 145
87 × 120
90 × 116
First multiples
10,440 · 20,880 (double) · 31,320 · 41,760 · 52,200 · 62,640 · 73,080 · 83,520 · 93,960 · 104,400

Sums & aliquot sequence

As a sum of two squares: 6² + 102² = 66² + 78²
As consecutive integers: 3,479 + 3,480 + 3,481 2,086 + 2,087 + 2,088 + 2,089 + 2,090 1,156 + 1,157 + … + 1,164 689 + 690 + … + 703
Aliquot sequence: 10,440 24,660 50,688 108,900 266,293 1 0 — terminates at zero

Representations

In words
ten thousand four hundred forty
Ordinal
10440th
Binary
10100011001000
Octal
24310
Hexadecimal
0x28C8
Base64
KMg=
One's complement
55,095 (16-bit)
In other bases
ternary (3) 112022200
quaternary (4) 2203020
quinary (5) 313230
senary (6) 120200
septenary (7) 42303
nonary (9) 15280
undecimal (11) 7931
duodecimal (12) 6060
tridecimal (13) 49a1
tetradecimal (14) 3b3a
pentadecimal (15) 3160

Historical numeral systems

Babylonian (base 60)
𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹 ·
Egyptian hieroglyphic
𓂍𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆
Greek (Milesian)
͵ιυμʹ
Mayan (base 20)
𝋡·𝋦·𝋢·𝋠
Chinese
一萬零四百四十
Chinese (financial)
壹萬零肆佰肆拾
In other modern scripts
Eastern Arabic ١٠٤٤٠ Devanagari १०४४० Bengali ১০৪৪০ Tamil ௧௦௪௪௦ Thai ๑๐๔๔๐ Tibetan ༡༠༤༤༠ Khmer ១០៤៤០ Lao ໑໐໔໔໐ Burmese ၁၀၄၄၀

Digit at this position in famous constants

π — Pi (π)
Digit 10,440 = 4
e — Euler's number (e)
Digit 10,440 = 8
φ — Golden ratio (φ)
Digit 10,440 = 0
√2 — Pythagoras's (√2)
Digit 10,440 = 0
ln 2 — Natural log of 2
Digit 10,440 = 9
γ — Euler-Mascheroni (γ)
Digit 10,440 = 0

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 10440, here are decompositions:

  • 7 + 10433 = 10440
  • 11 + 10429 = 10440
  • 13 + 10427 = 10440
  • 41 + 10399 = 10440
  • 71 + 10369 = 10440
  • 83 + 10357 = 10440
  • 97 + 10343 = 10440
  • 103 + 10337 = 10440

Showing the first eight; more decompositions exist.

Unicode codepoint
Braille Pattern Dots-478
U+28C8
Other symbol (So)

UTF-8 encoding: E2 A3 88 (3 bytes).

Hex color
#0028C8
RGB(0, 40, 200)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.40.200.

Address
0.0.40.200
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.40.200

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

Position in π

The digit sequence 10440 first appears in π at position 72,643 of the decimal expansion (the 72,643ordinal-suffix:rd 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.