Number

875

875 is a composite number, odd, a calendar year.

875 (eight hundred seventy-five) is an odd 3-digit number. It is a composite number with 8 divisors, and factors as 5³ × 7. Written other ways, in Roman numerals it is DCCCLXXV and in binary, 1101101011.

Arithmetic Number Deficient Number Descending Digits Odious Number Pernicious Number Recamán's Sequence Year

Interestingness

★ ☆ ☆ ☆ ☆

3 notable facts · grade F

863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887

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Historical context — 875 AD

Calendar year

Year 875 (DCCCLXXV) was a common year starting on Saturday of the Julian calendar.

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

Historical context — 875 BC

Decade

This article concerns the period 879 BC – 870 BC.

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

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: Tuesday
January 1, 875
Ended on: Tuesday
December 31, 875
Friday the 13ths: 2
2 Friday the 13ths this year.
Decade: 870s
870–879
Century: 9th century
801–900
Millennium: 1st millennium
1–1000
Years ago: 1,151
1151 years before 2026.

In other calendars

Hebrew: 4635 / 4636 AM
Rosh Hashanah falls in September/October.
Islamic Hijri: 261 / 262 AH
Lunar calendar; year spans differ from Gregorian.
Chinese: Year of the zodiac:Wood zodiac:Goat
Sexagenary cycle position 32 of 60. Lunar new year falls in late January / mid-February.
Buddhist Era: 1418 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
Persian Solar Hijri: 253 / 254 SH
Iranian calendar; Nowruz (new year) falls on the spring equinox.
Ethiopian: 867 / 868 ET
Year boundary at Enkutatash (September 11/12).
Indian National (Saka): 797 / 796 Saka
Indian national calendar; year starts in March.

Properties

Parity: Odd
Digit count: 3
Digit sum: 20
Digit product: 280
Digital root: 2
Palindrome: No
Bit width: 10 bits
Reversed: 578
Recamán's sequence: a(781) = 875
Square (n²): 765,625
Cube (n³): 669,921,875
Divisor count: 8
σ(n) — sum of divisors: 1,248
φ(n) — Euler's totient: 600
Sum of prime factors: 22

Primality

Prime factorization: 5 ³ × 7

Nearest primes: 863 (−12) · 877 (+2)

Divisors & multiples

All divisors (8)

1 · 5 · 7 · 25 · 35 · 125 · 175 · 875

Aliquot sum (sum of proper divisors): 373

Factor pairs (a × b = 875)

1 × 875

5 × 175

7 × 125

25 × 35

First multiples

875 · 1,750 (double) · 2,625 · 3,500 · 4,375 · 5,250 · 6,125 · 7,000 · 7,875 · 8,750

Sums & aliquot sequence

As consecutive integers: 437 + 438 173 + 174 + 175 + 176 + 177 122 + 123 + … + 128 83 + 84 + … + 92

Aliquot sequence: 875 → 373 → 1 → 0 — terminates at zero

Continued fraction of √n

√875 = [29; (1, 1, 2, 1, 1, 1, 1, 3, 1, 1, 1, 1, 2, 1, 1, 58)]

Period length 16 — the block in parentheses repeats forever.

Representations

In words: eight hundred seventy-five
Ordinal: 875th
Roman numeral: DCCCLXXV
Binary: 1101101011
Octal: 1553
Hexadecimal: 0x36B
Base64: A2s=
One's complement: 64,660 (16-bit)
Scientific notation: 8.75 × 10²
As a duration: 875 s = 14 minutes, 35 seconds

In other bases

ternary (3) 1012102

quaternary (4) 31223

quinary (5) 12000

senary (6) 4015

septenary (7) 2360

nonary (9) 1172

undecimal (11) 726

duodecimal (12) 60b

tridecimal (13) 524

tetradecimal (14) 467

pentadecimal (15) 3d5

As an angle

875° = 2 × 360° + 155°

155° ≈ 2.705 rad

Compass bearing: SSE (south-southeast)

Why does a circle have 360 degrees? →

Historical numeral systems

Babylonian (base 60): 𒌋𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic: 𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺
Greek (Milesian): ωοεʹ
Mayan (base 20): 𝋢·𝋣·𝋯
Chinese: 八百七十五
Chinese (financial): 捌佰柒拾伍

In other modern scripts

Eastern Arabic ٨٧٥ Devanagari ८७५ Bengali ৮৭৫ Tamil ௮௭௫ Thai ๘๗๕ Tibetan ༨༧༥ Khmer ៨៧៥ Lao ໘໗໕ Burmese ၈၇၅

Digit at this position in famous constants

π — Pi (π): Digit 875 = 5
e — Euler's number (e): Digit 875 = 5
φ — Golden ratio (φ): Digit 875 = 7
√2 — Pythagoras's (√2): Digit 875 = 4
ln 2 — Natural log of 2: Digit 875 = 7
γ — Euler-Mascheroni (γ): Digit 875 = 2

Also seen as

Unicode codepoint

Combining Latin Small Letter M

U+036B

Non-spacing mark (Mn)

UTF-8 encoding: CD AB (2 bytes).

Lookup U+036B on Compart ↗ Lookup on FileFormat.Info ↗

Hex color

#00036B

RGB(0, 3, 107)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.3.107.

Address: 0.0.3.107
Class: reserved
IPv4-mapped IPv6: ::ffff:0.0.3.107

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

Musical pitch

Heard as a frequency, 875 Hz is closest to:

Concert pitch (A4 = 440 Hz): A5 (880 Hz, -10¢)
Scientific pitch (C4 = 256 Hz): A5 (861.1 Hz, +28¢)
Baroque pitch (A4 = 415 Hz): A♯5 (879.4 Hz, -9¢)