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Number

1,749

1,749 is a composite number, odd, a calendar year.

Arithmetic Number Deficient Number Odious Number Pernicious Number Recamán's Sequence Sphenic Number Squarefree Year

Notable events — 1749 AD

  1. Jun 21 Halifax, Nova Scotia, is founded.
  2. Feb 15 Henry Fielding publishes Tom Jones.
  3. Undated Georges-Louis Leclerc, Comte de Buffon, publishes the first three volumes of Histoire Naturelle.

Events compiled from Wikipedia ↗ · Licensed CC BY-SA 4.0

Year facts

Year type
Common year
Standard 365-day year; not divisible by 4 (or divisible by 100 but not 400).
Days in year
365
ISO weeks
52
Started on
Wednesday
January 1, 1749
Ended on
Wednesday
December 31, 1749
Friday the 13ths
1
One Friday the 13th this year.
Easter Sunday
April 6
Sunday, April 6, 1749
Decade
1740s
1740–1749
Century
18th century
1701–1800
Millennium
2nd millennium
1001–2000
Years ago
277
277 years before 2026.

In other calendars

Hebrew
5509 / 5510 AM
Rosh Hashanah falls in September/October.
Islamic Hijri
1162 / 1163 AH
Lunar calendar; year spans differ from Gregorian.
Chinese
Year of the zodiac:Earth zodiac:Snake
Sexagenary cycle position 6 of 60. Lunar new year falls in late January / mid-February.
Buddhist Era
2292 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
Persian Solar Hijri
1127 / 1128 SH
Iranian calendar; Nowruz (new year) falls on the spring equinox.
Ethiopian
1741 / 1742 ET
Year boundary at Enkutatash (September 11/12).
Indian National (Saka)
1671 / 1670 Saka
Indian national calendar; year starts in March.

Properties

Parity
Odd
Digit count
4
Digit sum
21
Digit product
252
Digital root
3
Palindrome
No
Bit width
11 bits
Reversed
9,471
Recamán's sequence
a(16,201) = 1,749
Square (n²)
3,059,001
Cube (n³)
5,350,192,749
Divisor count
8
σ(n) — sum of divisors
2,592
φ(n) — Euler's totient
1,040
Sum of prime factors
67

Primality

Prime factorization: 3 × 11 × 53

Nearest primes: 1,747 (−2) · 1,753 (+4)

Divisors & multiples

All divisors (8)
1 · 3 · 11 · 33 · 53 · 159 · 583 · 1749
Aliquot sum (sum of proper divisors): 843
Factor pairs (a × b = 1,749)
1 × 1749
3 × 583
11 × 159
33 × 53
First multiples
1,749 · 3,498 (double) · 5,247 · 6,996 · 8,745 · 10,494 · 12,243 · 13,992 · 15,741 · 17,490

Sums & aliquot sequence

As consecutive integers: 874 + 875 582 + 583 + 584 289 + 290 + 291 + 292 + 293 + 294 154 + 155 + … + 164
Aliquot sequence: 1,749 843 285 195 141 51 21 11 1 0 — terminates at zero

Representations

In words
one thousand seven hundred forty-nine
Ordinal
1749th
Roman numeral
MDCCXLIX
Binary
11011010101
Octal
3325
Hexadecimal
0x6D5
Base64
BtU=
One's complement
63,786 (16-bit)
In other bases
ternary (3) 2101210
quaternary (4) 123111
quinary (5) 23444
senary (6) 12033
septenary (7) 5046
nonary (9) 2353
undecimal (11) 1350
duodecimal (12) 1019
tridecimal (13) a47
tetradecimal (14) 8cd
pentadecimal (15) 7b9

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian)
͵αψμθʹ
Mayan (base 20)
𝋤·𝋧·𝋩
Chinese
一千七百四十九
Chinese (financial)
壹仟柒佰肆拾玖
In other modern scripts
Eastern Arabic ١٧٤٩ Devanagari १७४९ Bengali ১৭৪৯ Tamil ௧௭௪௯ Thai ๑๗๔๙ Tibetan ༡༧༤༩ Khmer ១៧៤៩ Lao ໑໗໔໙ Burmese ၁၇၄၉

Digit at this position in famous constants

π — Pi (π)
Digit 1,749 = 5
e — Euler's number (e)
Digit 1,749 = 1
φ — Golden ratio (φ)
Digit 1,749 = 6
√2 — Pythagoras's (√2)
Digit 1,749 = 9
ln 2 — Natural log of 2
Digit 1,749 = 3
γ — Euler-Mascheroni (γ)
Digit 1,749 = 8

Also seen as

Unicode codepoint
ە
Arabic Letter Ae
U+06D5
Other letter (Lo)

UTF-8 encoding: DB 95 (2 bytes).

Hex color
#0006D5
RGB(0, 6, 213)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.6.213.

Address
0.0.6.213
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.6.213

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

Position in π

The digit sequence 1749 first appears in π at position 2,109 of the decimal expansion (the 2,109ordinal-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.