1,506
1,506 is a composite number, even, a calendar year.
Notable events — 1506 AD
- May 20 Christopher Columbus dies in Valladolid.
- Apr 11 Construction of the new St. Peter's Basilica begins in Rome.
- Jan 22 The Pope's Swiss Guard is founded.
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
-
Monday
January 1, 1506
- Ended on
-
Monday
December 31, 1506
- Friday the 13ths
-
2
2 Friday the 13ths this year.
- Decade
-
1500s
1500–1509
- Century
-
16th century
1501–1600
- Millennium
-
2nd millennium
1001–2000
- Years ago
-
520
520 years before 2026.
In other calendars
- Hebrew
-
5266 / 5267 AM
Rosh Hashanah falls in September/October.
- Islamic Hijri
-
911 / 912 AH
Lunar calendar; year spans differ from Gregorian.
- Chinese
-
Year of the zodiac:Fire zodiac:Tiger
Sexagenary cycle position 3 of 60. Lunar new year falls in late January / mid-February.
- Buddhist Era
-
2049 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
- Persian Solar Hijri
-
884 / 885 SH
Iranian calendar; Nowruz (new year) falls on the spring equinox.
- Ethiopian
-
1498 / 1499 ET
Year boundary at Enkutatash (September 11/12).
- Indian National (Saka)
-
1428 / 1427 Saka
Indian national calendar; year starts in March.
Properties
- Parity
- Even
- Digit count
- 4
- Digit sum
- 12
- Digit product
- 0
- Digital root
- 3
- Palindrome
- No
- Bit width
- 11 bits
- Reversed
- 6,051
- Recamán's sequence
- a(1,548) = 1,506
- Square (n²)
- 2,268,036
- Cube (n³)
- 3,415,662,216
- Divisor count
- 8
- σ(n) — sum of divisors
- 3,024
- φ(n) — Euler's totient
- 500
- Sum of prime factors
- 256
Primality
Prime factorization: 2 × 3 × 251
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- one thousand five hundred six
- Ordinal
- 1506th
- Roman numeral
- MDVI
- Binary
- 10111100010
- Octal
- 2742
- Hexadecimal
- 0x5E2
- Base64
- BeI=
- One's complement
- 64,029 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆼𓍢𓍢𓍢𓍢𓍢𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵αφϛʹ
- Mayan (base 20)
- 𝋣·𝋯·𝋦
- Chinese
- 一千五百零六
- Chinese (financial)
- 壹仟伍佰零陸
Digit at this position in famous constants
- π — Pi (π)
- Digit 1,506 = 6
- e — Euler's number (e)
- Digit 1,506 = 9
- φ — Golden ratio (φ)
- Digit 1,506 = 0
- √2 — Pythagoras's (√2)
- Digit 1,506 = 2
- ln 2 — Natural log of 2
- Digit 1,506 = 9
- γ — Euler-Mascheroni (γ)
- Digit 1,506 = 0
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1506, here are decompositions:
- 7 + 1499 = 1506
- 13 + 1493 = 1506
- 17 + 1489 = 1506
- 19 + 1487 = 1506
- 23 + 1483 = 1506
- 47 + 1459 = 1506
- 53 + 1453 = 1506
- 59 + 1447 = 1506
Showing the first eight; more decompositions exist.
UTF-8 encoding: D7 A2 (2 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.5.226.
- Address
- 0.0.5.226
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.5.226
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 1506 first appears in π at position 1,114 of the decimal expansion (the 1,114ordinal-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.