1,504
1,504 is a composite number, even, a calendar year.
Notable events — 1504 AD
- Sep 8 Michelangelo unveils his David in Florence.
- Nov 26 Queen Isabella I of Castile dies; her daughter Joanna inherits the throne.
- Undated France and Spain conclude the Treaty of Lyon dividing Italy.
Events compiled from Wikipedia ↗ · Licensed CC BY-SA 4.0
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
-
Friday
January 1, 1504
- Ended on
-
Saturday
December 31, 1504
- Friday the 13ths
-
1
One Friday the 13th this year.
- Decade
-
1500s
1500–1509
- Century
-
16th century
1501–1600
- Millennium
-
2nd millennium
1001–2000
- Years ago
-
522
522 years before 2026.
In other calendars
- Hebrew
-
5264 / 5265 AM
Rosh Hashanah falls in September/October.
- Islamic Hijri
-
909 / 910 AH
Lunar calendar; year spans differ from Gregorian.
- Chinese
-
Year of the zodiac:Wood zodiac:Rat
Sexagenary cycle position 1 of 60. Lunar new year falls in late January / mid-February.
- Buddhist Era
-
2047 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
- Persian Solar Hijri
-
882 / 883 SH
Iranian calendar; Nowruz (new year) falls on the spring equinox.
- Ethiopian
-
1496 / 1497 ET
Year boundary at Enkutatash (September 11/12).
- Indian National (Saka)
-
1426 / 1425 Saka
Indian national calendar; year starts in March.
Properties
Primality
Prime factorization: 2 5 × 47
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- one thousand five hundred four
- Ordinal
- 1504th
- Roman numeral
- MDIV
- Binary
- 10111100000
- Octal
- 2740
- Hexadecimal
- 0x5E0
- Base64
- BeA=
- One's complement
- 64,031 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆼𓍢𓍢𓍢𓍢𓍢𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵αφδʹ
- Mayan (base 20)
- 𝋣·𝋯·𝋤
- Chinese
- 一千五百零四
- Chinese (financial)
- 壹仟伍佰零肆
Digit at this position in famous constants
- π — Pi (π)
- Digit 1,504 = 1
- e — Euler's number (e)
- Digit 1,504 = 6
- φ — Golden ratio (φ)
- Digit 1,504 = 3
- √2 — Pythagoras's (√2)
- Digit 1,504 = 1
- ln 2 — Natural log of 2
- Digit 1,504 = 3
- γ — Euler-Mascheroni (γ)
- Digit 1,504 = 8
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1504, here are decompositions:
- 5 + 1499 = 1504
- 11 + 1493 = 1504
- 17 + 1487 = 1504
- 23 + 1481 = 1504
- 53 + 1451 = 1504
- 71 + 1433 = 1504
- 131 + 1373 = 1504
- 137 + 1367 = 1504
Showing the first eight; more decompositions exist.
UTF-8 encoding: D7 A0 (2 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.5.224.
- Address
- 0.0.5.224
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.5.224
Unspecified address (0.0.0.0/8) — "this network" placeholder.
This passes the ABA routing number checksum and matches the Federal Reserve numbering scheme.
Banks operate many routing numbers per state and division; an unmatched checksum-valid number can still be a real RTN at a smaller institution.
The digit sequence 1504 first appears in π at position 4,913 of the decimal expansion (the 4,913ordinal-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.