Number

325

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

Deficient Number Evil Number Hexagonal Nonagonal Recamán's Sequence Triangular Year

Notable events — 325 AD

Undated The First Council of Nicaea convenes, producing the Nicene Creed.

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

Historical context — 325 BC

Calendar year

Year 325 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: Common year
Standard 365-day year; not divisible by 4 (or divisible by 100 but not 400).
Days in year: 365
ISO weeks: 53
Long year: contains 53 ISO weeks.
Started on: Thursday
January 1, 325
Ended on: Thursday
December 31, 325
Friday the 13ths: 3
3 Friday the 13ths this year.
Decade: 320s
320–329
Century: 4th century
301–400
Millennium: 1st millennium
1–1000
Years ago: 1,701
1701 years before 2026.

In other calendars

Hebrew: 4085 / 4086 AM
Rosh Hashanah falls in September/October.
Chinese: Year of the zodiac:Wood zodiac:Rooster
Sexagenary cycle position 22 of 60. Lunar new year falls in late January / mid-February.
Buddhist Era: 868 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
Ethiopian: 317 / 318 ET
Year boundary at Enkutatash (September 11/12).
Indian National (Saka): 247 / 246 Saka
Indian national calendar; year starts in March.

Properties

Parity: Odd
Digit count: 3
Digit sum: 10
Digit product: 30
Digital root: 1
Palindrome: No
Bit width: 9 bits
Reversed: 523
Recamán's sequence: a(598) = 325
Square (n²): 105,625
Cube (n³): 34,328,125
Divisor count: 6
σ(n) — sum of divisors: 434
φ(n) — Euler's totient: 240
Sum of prime factors: 23

Primality

Prime factorization: 5 ² × 13

Nearest primes: 317 (−8) · 331 (+6)

Divisors & multiples

All divisors (6)

1 · 5 · 13 · 25 · 65 · 325

Aliquot sum (sum of proper divisors): 109

Factor pairs (a × b = 325)

1 × 325

5 × 65

13 × 25

First multiples

325 · 650 (double) · 975 · 1,300 · 1,625 · 1,950 · 2,275 · 2,600 · 2,925 · 3,250

Sums & aliquot sequence

As a sum of two squares: 1² + 18² = 6² + 17² = 10² + 15²

As consecutive integers: 162 + 163 63 + 64 + 65 + 66 + 67 28 + 29 + … + 37 19 + 20 + … + 31

Aliquot sequence: 325 → 109 → 1 → 0 — terminates at zero

Representations

In words: three hundred twenty-five
Ordinal: 325th
Roman numeral: CCCXXV
Binary: 101000101
Octal: 505
Hexadecimal: 0x145
Base64: AUU=
One's complement: 65,210 (16-bit)

In other bases

ternary (3) 110001

quaternary (4) 11011

quinary (5) 2300

senary (6) 1301

septenary (7) 643

nonary (9) 401

undecimal (11) 276

duodecimal (12) 231

tridecimal (13) 1c0

tetradecimal (14) 193

pentadecimal (15) 16a

Historical numeral systems

Babylonian (base 60): 𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic: 𓍢𓍢𓍢𓎆𓎆𓏺𓏺𓏺𓏺𓏺
Greek (Milesian): τκεʹ
Mayan (base 20): 𝋰·𝋥
Chinese: 三百二十五
Chinese (financial): 參佰貳拾伍

In other modern scripts

Eastern Arabic ٣٢٥ Devanagari ३२५ Bengali ৩২৫ Tamil ௩௨௫ Thai ๓๒๕ Tibetan ༣༢༥ Khmer ៣២៥ Lao ໓໒໕ Burmese ၃၂၅

Digit at this position in famous constants

π — Pi (π): Digit 325 = 1
e — Euler's number (e): Digit 325 = 4
φ — Golden ratio (φ): Digit 325 = 7
√2 — Pythagoras's (√2): Digit 325 = 0
ln 2 — Natural log of 2: Digit 325 = 1
γ — Euler-Mascheroni (γ): Digit 325 = 2

Also seen as

Unicode codepoint

Latin Capital Letter N With Cedilla

U+0145

Uppercase letter (Lu)

UTF-8 encoding: C5 85 (2 bytes).

Lookup U+0145 on Compart ↗ Lookup on FileFormat.Info ↗

Hex color

#000145

RGB(0, 1, 69)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.1.69.

Address: 0.0.1.69
Class: reserved
IPv4-mapped IPv6: ::ffff:0.0.1.69

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

NANP area code 325

The number 325 is an active NANP area code (North American Numbering Plan).

Primary area: Abilene / San Angelo
Region: Texas
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.

Look up area code 325 ↗