Number

1,529

1,529 is a composite number, odd, a calendar year.

1,529 (one thousand five hundred twenty-nine) is an odd 4-digit number. It is a composite number with 4 divisors, and factors as 11 × 139. Written other ways, in Roman numerals it is MDXXIX and in binary, 10111111001.

Arithmetic Number Cube-Free Deficient Number Evil Number Recamán's Sequence Semiprime Squarefree Year

Interestingness

★ ★ ★ ☆ ☆

5 notable facts · grade C

1,517 1,518 1,519 1,520 1,521 1,522 1,523 1,524 1,525 1,526 1,527 1,528 1,529 1,530 1,531 1,532 1,533 1,534 1,535 1,536 1,537 1,538 1,539 1,540 1,541

less more

Notable events — 1529 AD

Sep 27 Ottoman forces besiege Vienna for the first time.
Aug 5 The "Ladies' Peace" of Cambrai ends the second phase of the Italian Wars.
Oct 6 The Ottoman siege of Vienna fails.

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: Tuesday
January 1, 1529
Ended on: Tuesday
December 31, 1529
Friday the 13ths: 2
2 Friday the 13ths this year.
Decade: 1520s
1520–1529
Century: 16th century
1501–1600
Millennium: 2nd millennium
1001–2000
Years ago: 497
497 years before 2026.

In other calendars

Hebrew: 5289 / 5290 AM
Rosh Hashanah falls in September/October.
Islamic Hijri: 935 / 936 AH
Lunar calendar; year spans differ from Gregorian.
Chinese: Year of the zodiac:Earth zodiac:Ox
Sexagenary cycle position 26 of 60. Lunar new year falls in late January / mid-February.
Buddhist Era: 2072 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
Persian Solar Hijri: 907 / 908 SH
Iranian calendar; Nowruz (new year) falls on the spring equinox.
Ethiopian: 1521 / 1522 ET
Year boundary at Enkutatash (September 11/12).
Indian National (Saka): 1451 / 1450 Saka
Indian national calendar; year starts in March.

Properties

Parity: Odd
Digit count: 4
Digit sum: 17
Digit product: 90
Digital root: 8
Palindrome: No
Bit width: 11 bits
Reversed: 9,251
Recamán's sequence: a(1,502) = 1,529
Square (n²): 2,337,841
Cube (n³): 3,574,558,889
Divisor count: 4
σ(n) — sum of divisors: 1,680
φ(n) — Euler's totient: 1,380
Sum of prime factors: 150

Primality

Prime factorization: 11 × 139

Nearest primes: 1,523 (−6) · 1,531 (+2)

Divisors & multiples

All divisors (4)

1 · 11 · 139 · 1529

Aliquot sum (sum of proper divisors): 151

Factor pairs (a × b = 1,529)

1 × 1529

11 × 139

First multiples

1,529 · 3,058 (double) · 4,587 · 6,116 · 7,645 · 9,174 · 10,703 · 12,232 · 13,761 · 15,290

Sums & aliquot sequence

As consecutive integers: 764 + 765 134 + 135 + … + 144 59 + 60 + … + 80

Aliquot sequence: 1,529 → 151 → 1 → 0 — terminates at zero

Continued fraction of √n

√1,529 = [39; (9, 1, 3, 4, 1, 1, 1, 2, 2, 15, 4, 1, 1, 6, 1, 1, 4, 15, 2, 2, 1, 1, 1, 4, …)]

Period length 28 — the block in parentheses repeats forever.

Representations

In words: one thousand five hundred twenty-nine
Ordinal: 1529th
Roman numeral: MDXXIX
Binary: 10111111001
Octal: 2771
Hexadecimal: 0x5F9
Base64: Bfk=
One's complement: 64,006 (16-bit)
Scientific notation: 1.529 × 10³
As a duration: 1,529 s = 25 minutes, 29 seconds

In other bases

ternary (3) 2002122

quaternary (4) 113321

quinary (5) 22104

senary (6) 11025

septenary (7) 4313

nonary (9) 2078

undecimal (11) 1170

duodecimal (12) a75

tridecimal (13) 908

tetradecimal (14) 7b3

pentadecimal (15) 6be

As an angle

1,529° = 4 × 360° + 89°

89° ≈ 1.553 rad

Compass bearing: E (east)

Why does a circle have 360 degrees? →

Historical numeral systems

Babylonian (base 60): 𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic: 𓆼𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian): ͵αφκθʹ
Mayan (base 20): 𝋣·𝋰·𝋩
Chinese: 一千五百二十九
Chinese (financial): 壹仟伍佰貳拾玖

In other modern scripts

Eastern Arabic ١٥٢٩ Devanagari १५२९ Bengali ১৫২৯ Tamil ௧௫௨௯ Thai ๑๕๒๙ Tibetan ༡༥༢༩ Khmer ១៥២៩ Lao ໑໕໒໙ Burmese ၁၅၂၉

Digit at this position in famous constants

π — Pi (π): Digit 1,529 = 6
e — Euler's number (e): Digit 1,529 = 7
φ — Golden ratio (φ): Digit 1,529 = 1
√2 — Pythagoras's (√2): Digit 1,529 = 2
ln 2 — Natural log of 2: Digit 1,529 = 7
γ — Euler-Mascheroni (γ): Digit 1,529 = 8

Also seen as

Hex color

#0005F9

RGB(0, 5, 249)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.5.249.

Address: 0.0.5.249
Class: reserved
IPv4-mapped IPv6: ::ffff:0.0.5.249

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

Musical pitch

Heard as a frequency, 1,529 Hz is closest to:

Concert pitch (A4 = 440 Hz): G6 (1568 Hz, -44¢)
Scientific pitch (C4 = 256 Hz): G6 (1534.3 Hz, -6¢)
Baroque pitch (A4 = 415 Hz): G♯6 (1566.8 Hz, -42¢)

Position in π

The digit sequence 1529 first appears in π at position 9,365 of the decimal expansion (the 9,365ordinal-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.

Look up 1529 on Pi Search ↗