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165,080

165,080 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.).

165,080 (one hundred sixty-five thousand eighty) is an even 6-digit number. It is a composite number with 16 divisors, and factors as 2³ × 5 × 4,127. Its proper divisors sum to 206,440, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x284D8.

Abundant Number Arithmetic Number Gapful Number Harshad / Niven Odious Number Pernicious Number Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
6
Digit sum
20
Digit product
0
Digital root
2
Palindrome
No
Bit width
18 bits
Reversed
80,561
Square (n²)
27,251,406,400
Cube (n³)
4,498,662,168,512,000
Divisor count
16
σ(n) — sum of divisors
371,520
φ(n) — Euler's totient
66,016
Sum of prime factors
4,138

Primality

Prime factorization: 2 3 × 5 × 4127

Nearest primes: 165,079 (−1) · 165,083 (+3)

Divisors & multiples

All divisors (16)
1 · 2 · 4 · 5 · 8 · 10 · 20 · 40 · 4127 · 8254 · 16508 · 20635 · 33016 · 41270 · 82540 (half) · 165080
Aliquot sum (sum of proper divisors): 206,440
Factor pairs (a × b = 165,080)
1 × 165080
2 × 82540
4 × 41270
5 × 33016
8 × 20635
10 × 16508
20 × 8254
40 × 4127
First multiples
165,080 · 330,160 (double) · 495,240 · 660,320 · 825,400 · 990,480 · 1,155,560 · 1,320,640 · 1,485,720 · 1,650,800

Sums & aliquot sequence

As consecutive integers: 33,014 + 33,015 + 33,016 + 33,017 + 33,018 10,310 + 10,311 + … + 10,325 2,024 + 2,025 + … + 2,103
Aliquot sequence: 165,080 206,440 295,040 411,820 470,180 517,240 670,040 1,053,640 1,745,720 2,390,680 3,084,920 3,907,000 5,237,720 6,869,080 8,780,120 10,975,240 15,152,120 — unresolved within range

Continued fraction of √n

√165,080 = [406; (3, 3, 25, 1, 10, 2, 14, 3, 2, 1, 2, 18, 10, 4, 3, 6, 2, 2, 4, 1, 39, 1, 4, 2, …)]

Period length 42 — the block in parentheses repeats forever.

Representations

In words
one hundred sixty-five thousand eighty
Ordinal
165080th
Binary
101000010011011000
Octal
502330
Hexadecimal
0x284D8
Base64
AoTY
One's complement
4,294,802,215 (32-bit)
Scientific notation
1.6508 × 10⁵
As a duration
165,080 s = 1 day, 21 hours, 51 minutes, 20 seconds
In other bases
ternary (3) 22101110002
quaternary (4) 220103120
quinary (5) 20240310
senary (6) 3312132
septenary (7) 1255166
nonary (9) 271402
undecimal (11) 103033
duodecimal (12) 7b648
tridecimal (13) 5a1a6
tetradecimal (14) 44236
pentadecimal (15) 33da5

As an angle

165,080° = 458 × 360° + 200°
200° ≈ 3.491 rad
Compass bearing: SSW (south-southwest)

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹 𒌋𒌋
Egyptian hieroglyphic
𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆
Greek (Milesian)
͵ρξεπʹ
Chinese
一十六萬五千零八十
Chinese (financial)
壹拾陸萬伍仟零捌拾
In other modern scripts
Eastern Arabic ١٦٥٠٨٠ Devanagari १६५०८० Bengali ১৬৫০৮০ Tamil ௧௬௫௦௮௦ Thai ๑๖๕๐๘๐ Tibetan ༡༦༥༠༨༠ Khmer ១៦៥០៨០ Lao ໑໖໕໐໘໐ Burmese ၁၆၅၀၈၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 165080, here are decompositions:

  • 31 + 165049 = 165080
  • 43 + 165037 = 165080
  • 79 + 165001 = 165080
  • 127 + 164953 = 165080
  • 199 + 164881 = 165080
  • 241 + 164839 = 165080
  • 271 + 164809 = 165080
  • 313 + 164767 = 165080

Showing the first eight; more decompositions exist.

Unicode codepoint
𨓘
CJK Unified Ideograph-284D8
U+284D8
Other letter (Lo)

UTF-8 encoding: F0 A8 93 98 (4 bytes).

Hex color
#0284D8
RGB(2, 132, 216)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.2.132.216.

Address
0.2.132.216
Class
reserved
IPv4-mapped IPv6
::ffff:0.2.132.216

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

Possible US patent number

This number falls in the range of US utility patent numbers. If it's a patent, it would be issued as US 165,080 and was likely granted around 1874.

Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.

Position in π

The digit sequence 165080 first appears in π at position 806,138 of the decimal expansion (the 806,138ordinal-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

  • Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.