1,528
1,528 is a composite number, even, a calendar year.
Notable events — 1528 AD
- Apr 21 Spanish conquistadors land at Tampa Bay, Florida.
- Jun 28 England signs a treaty with France against the Empire.
- Undated Baldassare Castiglione publishes The Book of the Courtier.
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
-
Sunday
January 1, 1528
- Ended on
-
Monday
December 31, 1528
- Friday the 13ths
-
3
3 Friday the 13ths this year.
- Decade
-
1520s
1520–1529
- Century
-
16th century
1501–1600
- Millennium
-
2nd millennium
1001–2000
- Years ago
-
498
498 years before 2026.
In other calendars
- Hebrew
-
5288 / 5289 AM
Rosh Hashanah falls in September/October.
- Islamic Hijri
-
934 / 935 AH
Lunar calendar; year spans differ from Gregorian.
- Chinese
-
Year of the zodiac:Earth zodiac:Rat
Sexagenary cycle position 25 of 60. Lunar new year falls in late January / mid-February.
- Buddhist Era
-
2071 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
- Persian Solar Hijri
-
906 / 907 SH
Iranian calendar; Nowruz (new year) falls on the spring equinox.
- Ethiopian
-
1520 / 1521 ET
Year boundary at Enkutatash (September 11/12).
- Indian National (Saka)
-
1450 / 1449 Saka
Indian national calendar; year starts in March.
Properties
- Parity
- Even
- Digit count
- 4
- Digit sum
- 16
- Digit product
- 80
- Digital root
- 7
- Palindrome
- No
- Bit width
- 11 bits
- Reversed
- 8,251
- Recamán's sequence
- a(1,504) = 1,528
- Square (n²)
- 2,334,784
- Cube (n³)
- 3,567,549,952
- Divisor count
- 8
- σ(n) — sum of divisors
- 2,880
- φ(n) — Euler's totient
- 760
- Sum of prime factors
- 197
Primality
Prime factorization: 2 3 × 191
Divisors & multiples
Sums & aliquot sequence
Representations
- In words
- one thousand five hundred twenty-eight
- Ordinal
- 1528th
- Roman numeral
- MDXXVIII
- Binary
- 10111111000
- Octal
- 2770
- Hexadecimal
- 0x5F8
- Base64
- Bfg=
- One's complement
- 64,007 (16-bit)
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
- Egyptian hieroglyphic
- 𓆼𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
- Greek (Milesian)
- ͵αφκηʹ
- Mayan (base 20)
- 𝋣·𝋰·𝋨
- Chinese
- 一千五百二十八
- Chinese (financial)
- 壹仟伍佰貳拾捌
Digit at this position in famous constants
- π — Pi (π)
- Digit 1,528 = 0
- e — Euler's number (e)
- Digit 1,528 = 1
- φ — Golden ratio (φ)
- Digit 1,528 = 9
- √2 — Pythagoras's (√2)
- Digit 1,528 = 8
- ln 2 — Natural log of 2
- Digit 1,528 = 7
- γ — Euler-Mascheroni (γ)
- Digit 1,528 = 4
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1528, here are decompositions:
- 5 + 1523 = 1528
- 17 + 1511 = 1528
- 29 + 1499 = 1528
- 41 + 1487 = 1528
- 47 + 1481 = 1528
- 89 + 1439 = 1528
- 101 + 1427 = 1528
- 167 + 1361 = 1528
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.0.5.248.
- Address
- 0.0.5.248
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.5.248
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 1528 first appears in π at position 3,414 of the decimal expansion (the 3,414ordinal-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.