Number

1,415

1,415 is a composite number, odd, a calendar year.

Arithmetic Number Deficient Number Evil Number Recamán's Sequence Semiprime Squarefree Year

Notable events — 1415 AD

Oct 25 Henry V wins decisively at Agincourt with the English longbow.

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: Sunday
January 1, 1415
Ended on: Sunday
December 31, 1415
Friday the 13ths: 2
2 Friday the 13ths this year.
Decade: 1410s
1410–1419
Century: 15th century
1401–1500
Millennium: 2nd millennium
1001–2000
Years ago: 611
611 years before 2026.

In other calendars

Hebrew: 5175 / 5176 AM
Rosh Hashanah falls in September/October.
Islamic Hijri: 817 / 818 AH
Lunar calendar; year spans differ from Gregorian.
Chinese: Year of the zodiac:Wood zodiac:Goat
Sexagenary cycle position 32 of 60. Lunar new year falls in late January / mid-February.
Buddhist Era: 1958 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
Persian Solar Hijri: 793 / 794 SH
Iranian calendar; Nowruz (new year) falls on the spring equinox.
Ethiopian: 1407 / 1408 ET
Year boundary at Enkutatash (September 11/12).
Indian National (Saka): 1337 / 1336 Saka
Indian national calendar; year starts in March.

Properties

Parity: Odd
Digit count: 4
Digit sum: 11
Digit product: 20
Digital root: 2
Palindrome: No
Bit width: 11 bits
Reversed: 5,141
Recamán's sequence: a(526) = 1,415
Square (n²): 2,002,225
Cube (n³): 2,833,148,375
Divisor count: 4
σ(n) — sum of divisors: 1,704
φ(n) — Euler's totient: 1,128
Sum of prime factors: 288

Primality

Prime factorization: 5 × 283

Nearest primes: 1,409 (−6) · 1,423 (+8)

Divisors & multiples

All divisors (4)

1 · 5 · 283 · 1415

Aliquot sum (sum of proper divisors): 289

Factor pairs (a × b = 1,415)

1 × 1415

5 × 283

First multiples

1,415 · 2,830 (double) · 4,245 · 5,660 · 7,075 · 8,490 · 9,905 · 11,320 · 12,735 · 14,150

Sums & aliquot sequence

As consecutive integers: 707 + 708 281 + 282 + 283 + 284 + 285 137 + 138 + … + 146

Aliquot sequence: 1,415 → 289 → 18 → 21 → 11 → 1 → 0 — terminates at zero

Representations

In words: one thousand four hundred fifteen
Ordinal: 1415th
Roman numeral: MCDXV
Binary: 10110000111
Octal: 2607
Hexadecimal: 0x587
Base64: BYc=
One's complement: 64,120 (16-bit)

In other bases

ternary (3) 1221102

quaternary (4) 112013

quinary (5) 21130

senary (6) 10315

septenary (7) 4061

nonary (9) 1842

undecimal (11) 1077

duodecimal (12) 99b

tridecimal (13) 84b

tetradecimal (14) 731

pentadecimal (15) 645

Historical numeral systems

Babylonian (base 60): 𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic: 𓆼𓍢𓍢𓍢𓍢𓎆𓏺𓏺𓏺𓏺𓏺
Greek (Milesian): ͵αυιεʹ
Mayan (base 20): 𝋣·𝋪·𝋯
Chinese: 一千四百一十五
Chinese (financial): 壹仟肆佰壹拾伍

In other modern scripts

Eastern Arabic ١٤١٥ Devanagari १४१५ Bengali ১৪১৫ Tamil ௧௪௧௫ Thai ๑๔๑๕ Tibetan ༡༤༡༥ Khmer ១៤១៥ Lao ໑໔໑໕ Burmese ၁၄၁၅

Digit at this position in famous constants

π — Pi (π): Digit 1,415 = 0
e — Euler's number (e): Digit 1,415 = 8
φ — Golden ratio (φ): Digit 1,415 = 6
√2 — Pythagoras's (√2): Digit 1,415 = 1
ln 2 — Natural log of 2: Digit 1,415 = 6
γ — Euler-Mascheroni (γ): Digit 1,415 = 7

Also seen as

Unicode codepoint

Armenian Small Ligature Ech Yiwn

U+0587

Lowercase letter (Ll)

UTF-8 encoding: D6 87 (2 bytes).

Lookup U+0587 on Compart ↗ Lookup on FileFormat.Info ↗

Hex color

#000587

RGB(0, 5, 135)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.5.135.

Address: 0.0.5.135
Class: reserved
IPv4-mapped IPv6: ::ffff:0.0.5.135

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

Position in π

The digit sequence 1415 first appears in π at position 1 of the decimal expansion (the 1ordinal-suffix:st 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 1415 on Pi Search ↗