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16,550

16,550 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.).

16,550 (sixteen thousand five hundred fifty) is an even 5-digit number. It is a composite number with 12 divisors, and factors as 2 × 5² × 331. Written other ways, in hexadecimal, 0x40A6.

Arithmetic Number Cube-Free Deficient Number Gapful Number Odious Number Pernicious Number Recamán's Sequence

Interestingness

Properties

Parity
Even
Digit count
5
Digit sum
17
Digit product
0
Digital root
8
Palindrome
No
Bit width
15 bits
Reversed
5,561
Recamán's sequence
a(44,859) = 16,550
Square (n²)
273,902,500
Cube (n³)
4,533,086,375,000
Divisor count
12
σ(n) — sum of divisors
30,876
φ(n) — Euler's totient
6,600
Sum of prime factors
343

Primality

Prime factorization: 2 × 5 2 × 331

Nearest primes: 16,547 (−3) · 16,553 (+3)

Divisors & multiples

All divisors (12)
1 · 2 · 5 · 10 · 25 · 50 · 331 · 662 · 1655 · 3310 · 8275 (half) · 16550
Aliquot sum (sum of proper divisors): 14,326
Factor pairs (a × b = 16,550)
1 × 16550
2 × 8275
5 × 3310
10 × 1655
25 × 662
50 × 331
First multiples
16,550 · 33,100 (double) · 49,650 · 66,200 · 82,750 · 99,300 · 115,850 · 132,400 · 148,950 · 165,500

Sums & aliquot sequence

As consecutive integers: 4,136 + 4,137 + 4,138 + 4,139 3,308 + 3,309 + 3,310 + 3,311 + 3,312 818 + 819 + … + 837 650 + 651 + … + 674
Aliquot sequence: 16,550 14,326 10,874 5,440 8,276 6,214 3,866 1,936 2,187 1,093 1 0 — terminates at zero

Continued fraction of √n

√16,550 = [128; (1, 1, 1, 4, 1, 12, 1, 2, 1, 1, 4, 1, 1, 2, 1, 12, 1, 4, 1, 1, 1, 256)]

Period length 22 — the block in parentheses repeats forever.

Representations

In words
sixteen thousand five hundred fifty
Ordinal
16550th
Binary
100000010100110
Octal
40246
Hexadecimal
0x40A6
Base64
QKY=
One's complement
48,985 (16-bit)
Scientific notation
1.655 × 10⁴
As a duration
16,550 s = 4 hours, 35 minutes, 50 seconds
In other bases
ternary (3) 211200222
quaternary (4) 10002212
quinary (5) 1012200
senary (6) 204342
septenary (7) 66152
nonary (9) 24628
undecimal (11) 11486
duodecimal (12) 96b2
tridecimal (13) 76c1
tetradecimal (14) 6062
pentadecimal (15) 4d85

As an angle

16,550° = 45 × 360° + 350°
350° ≈ 6.109 rad
Compass bearing: N (north)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋
Egyptian hieroglyphic
𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆
Greek (Milesian)
͵ιϛφνʹ
Mayan (base 20)
𝋢·𝋡·𝋧·𝋪
Chinese
一萬六千五百五十
Chinese (financial)
壹萬陸仟伍佰伍拾
In other modern scripts
Eastern Arabic ١٦٥٥٠ Devanagari १६५५० Bengali ১৬৫৫০ Tamil ௧௬௫௫௦ Thai ๑๖๕๕๐ Tibetan ༡༦༥༥༠ Khmer ១៦៥៥០ Lao ໑໖໕໕໐ Burmese ၁၆၅၅၀

Digit at this position in famous constants

π — Pi (π)
Digit 16,550 = 6
e — Euler's number (e)
Digit 16,550 = 4
φ — Golden ratio (φ)
Digit 16,550 = 1
√2 — Pythagoras's (√2)
Digit 16,550 = 3
ln 2 — Natural log of 2
Digit 16,550 = 7
γ — Euler-Mascheroni (γ)
Digit 16,550 = 8

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 16550, here are decompositions:

  • 3 + 16547 = 16550
  • 31 + 16519 = 16550
  • 73 + 16477 = 16550
  • 97 + 16453 = 16550
  • 103 + 16447 = 16550
  • 139 + 16411 = 16550
  • 181 + 16369 = 16550
  • 211 + 16339 = 16550

Showing the first eight; more decompositions exist.

Unicode codepoint
CJK Unified Ideograph-40A6
U+40A6
Other letter (Lo)

UTF-8 encoding: E4 82 A6 (3 bytes).

Hex color
#0040A6
RGB(0, 64, 166)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.64.166.

Address
0.0.64.166
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.64.166

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

Musical pitch

Heard as a frequency, 16,550 Hz is closest to:

  • Concert pitch (A4 = 440 Hz): C10 (16744 Hz, -20¢)
  • Scientific pitch (C4 = 256 Hz): C10 (16384 Hz, +17¢)
  • Baroque pitch (A4 = 415 Hz): C♯10 (16731.8 Hz, -19¢)
Position in π

The digit sequence 16550 first appears in π at position 35,189 of the decimal expansion (the 35,189ordinal-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.

Related reading

  • Mayan numerals — Vigesimal dots-and-bars with a shell zero — one of the earliest true zeros.