1,488
1,488 is a composite number, even, a calendar year.
Historical context — 1488 AD
Calendar year
Year 1488 (MCDLXXXVIII) was a leap year starting on Tuesday of the Julian calendar.
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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
-
Sunday
January 1, 1488
- Ended on
-
Monday
December 31, 1488
- Friday the 13ths
-
3
3 Friday the 13ths this year.
- Decade
-
1480s
1480–1489
- Century
-
15th century
1401–1500
- Millennium
-
2nd millennium
1001–2000
- Years ago
-
538
538 years before 2026.
In other calendars
- Hebrew
-
5248 / 5249 AM
Rosh Hashanah falls in September/October.
- Islamic Hijri
-
893 / 894 AH
Lunar calendar; year spans differ from Gregorian.
- Chinese
-
Year of the zodiac:Earth zodiac:Monkey
Sexagenary cycle position 45 of 60. Lunar new year falls in late January / mid-February.
- Buddhist Era
-
2031 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
- Persian Solar Hijri
-
866 / 867 SH
Iranian calendar; Nowruz (new year) falls on the spring equinox.
- Ethiopian
-
1480 / 1481 ET
Year boundary at Enkutatash (September 11/12).
- Indian National (Saka)
-
1410 / 1409 Saka
Indian national calendar; year starts in March.
Properties
- Parity
- Even
- Digit count
- 4
- Digit sum
- 21
- Digit product
- 256
- Digital root
- 3
- Palindrome
- No
- Bit width
- 11 bits
- Reversed
- 8,841
- Recamán's sequence
- a(1,584) = 1,488
- Square (n²)
- 2,214,144
- Cube (n³)
- 3,294,646,272
- Divisor count
- 20
- σ(n) — sum of divisors
- 3,968
- φ(n) — Euler's totient
- 480
- Sum of prime factors
- 42
Primality
Prime factorization: 2 4 × 3 × 31
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- one thousand four hundred eighty-eight
- Ordinal
- 1488th
- Roman numeral
- MCDLXXXVIII
- Binary
- 10111010000
- Octal
- 2720
- Hexadecimal
- 0x5D0
- Base64
- BdA=
- One's complement
- 64,047 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵αυπηʹ
- Mayan (base 20)
- 𝋣·𝋮·𝋨
- Chinese
- 一千四百八十八
- Chinese (financial)
- 壹仟肆佰捌拾捌
Digit at this position in famous constants
- π — Pi (π)
- Digit 1,488 = 1
- e — Euler's number (e)
- Digit 1,488 = 4
- φ — Golden ratio (φ)
- Digit 1,488 = 0
- √2 — Pythagoras's (√2)
- Digit 1,488 = 4
- ln 2 — Natural log of 2
- Digit 1,488 = 4
- γ — Euler-Mascheroni (γ)
- Digit 1,488 = 1
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1488, here are decompositions:
- 5 + 1483 = 1488
- 7 + 1481 = 1488
- 17 + 1471 = 1488
- 29 + 1459 = 1488
- 37 + 1451 = 1488
- 41 + 1447 = 1488
- 59 + 1429 = 1488
- 61 + 1427 = 1488
Showing the first eight; more decompositions exist.
UTF-8 encoding: D7 90 (2 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.5.208.
- Address
- 0.0.5.208
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.5.208
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 1488 first appears in π at position 19,467 of the decimal expansion (the 19,467ordinal-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.