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Number

272

272 is a composite number, even, a calendar year.

Abundant Number Evil Number Palindrome Pernicious Number Practical Number Pronic / Oblong Recamán's Sequence Semiperfect Number Year

Historical context — 272 AD

Calendar year

Year 272 (CCLXXII) was a leap year starting on Monday of the Julian calendar.

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Historical context — 272 BC

Calendar year

Year 272 BC was a year of the pre-Julian Roman calendar.

Excerpt from Wikipedia (en) ↗ · Licensed CC BY-SA 4.0 · English fallback Read the full article on Wikipedia →

Year facts

Year type
Leap year
Divisible by 4 and not by 100; February has 29 days.
Days in year
366
ISO weeks
52
Started on
Monday
January 1, 272
Ended on
Tuesday
December 31, 272
Friday the 13ths
2
2 Friday the 13ths this year.
Decade
270s
270–279
Century
3rd century
201–300
Millennium
1st millennium
1–1000
Years ago
1,754
1754 years before 2026.

In other calendars

Hebrew
4032 / 4033 AM
Rosh Hashanah falls in September/October.
Chinese
Year of the zodiac:Water zodiac:Dragon
Sexagenary cycle position 29 of 60. Lunar new year falls in late January / mid-February.
Buddhist Era
815 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
Ethiopian
264 / 265 ET
Year boundary at Enkutatash (September 11/12).
Indian National (Saka)
194 / 193 Saka
Indian national calendar; year starts in March.

Properties

Parity
Even
Digit count
3
Digit sum
11
Digit product
28
Digital root
2
Palindrome
Yes
Bit width
9 bits
Recamán's sequence
a(143) = 272
Square (n²)
73,984
Cube (n³)
20,123,648
Divisor count
10
σ(n) — sum of divisors
558
φ(n) — Euler's totient
128
Sum of prime factors
25

Primality

Prime factorization: 2 4 × 17

Nearest primes: 271 (−1) · 277 (+5)

Divisors & multiples

All divisors (10)
1 · 2 · 4 · 8 · 16 · 17 · 34 · 68 · 136 (half) · 272
Aliquot sum (sum of proper divisors): 286
Factor pairs (a × b = 272)
1 × 272
2 × 136
4 × 68
8 × 34
16 × 17
First multiples
272 · 544 (double) · 816 · 1,088 · 1,360 · 1,632 · 1,904 · 2,176 · 2,448 · 2,720

Sums & aliquot sequence

As a sum of two squares: 4² + 16²
As consecutive integers: 8 + 9 + … + 24
Aliquot sequence: 272 286 218 112 136 134 70 74 40 50 43 1 0 — terminates at zero

Representations

In words
two hundred seventy-two
Ordinal
272nd
Roman numeral
CCLXXII
Binary
100010000
Octal
420
Hexadecimal
0x110
Base64
ARA=
One's complement
65,263 (16-bit)
In other bases
ternary (3) 101002
quaternary (4) 10100
quinary (5) 2042
senary (6) 1132
septenary (7) 536
nonary (9) 332
undecimal (11) 228
duodecimal (12) 1a8
tridecimal (13) 17c
tetradecimal (14) 156
pentadecimal (15) 132

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹
Egyptian hieroglyphic
𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺
Greek (Milesian)
σοβʹ
Mayan (base 20)
𝋭·𝋬
Chinese
二百七十二
Chinese (financial)
貳佰柒拾貳
In other modern scripts
Eastern Arabic ٢٧٢ Devanagari २७२ Bengali ২৭২ Tamil ௨௭௨ Thai ๒๗๒ Tibetan ༢༧༢ Khmer ២៧២ Lao ໒໗໒ Burmese ၂၇၂

Digit at this position in famous constants

π — Pi (π)
Digit 272 = 4
e — Euler's number (e)
Digit 272 = 7
φ — Golden ratio (φ)
Digit 272 = 3
√2 — Pythagoras's (√2)
Digit 272 = 3
ln 2 — Natural log of 2
Digit 272 = 3
γ — Euler-Mascheroni (γ)
Digit 272 = 9

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 272, here are decompositions:

  • 3 + 269 = 272
  • 31 + 241 = 272
  • 43 + 229 = 272
  • 61 + 211 = 272
  • 73 + 199 = 272
  • 79 + 193 = 272
  • 109 + 163 = 272
Unicode codepoint
Đ
Latin Capital Letter D With Stroke
U+0110
Uppercase letter (Lu)

UTF-8 encoding: C4 90 (2 bytes).

Hex color
#000110
RGB(0, 1, 16)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.1.16.

Address
0.0.1.16
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.1.16

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

NANP area code 272

The number 272 is an active NANP area code (North American Numbering Plan).

Primary area
Scranton
Region
Pennsylvania
Country
United States

Most NANP area codes have multiple overlays in dense regions; the primary area listed is the historic/largest population center for this code.