Number

715

715 is a composite number, odd, a calendar year.

Arithmetic Number Deficient Number Evil Number Harshad / Niven Pentagonal Recamán's Sequence Sphenic Number Squarefree Year

Historical context — 715 AD

Calendar year

Year 715 (DCCXV) was a common year starting on Tuesday of the Julian calendar.

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Historical context — 715 BC

Decade

This article concerns the period 719 BC – 710 BC.

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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: Friday
January 1, 715
Ended on: Friday
December 31, 715
Friday the 13ths: 1
One Friday the 13th this year.
Decade: 710s
710–719
Century: 8th century
701–800
Millennium: 1st millennium
1–1000
Years ago: 1,311
1311 years before 2026.

In other calendars

Hebrew: 4475 / 4476 AM
Rosh Hashanah falls in September/October.
Islamic Hijri: 96 / 97 AH
Lunar calendar; year spans differ from Gregorian.
Chinese: Year of the zodiac:Wood zodiac:Rabbit
Sexagenary cycle position 52 of 60. Lunar new year falls in late January / mid-February.
Buddhist Era: 1258 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
Persian Solar Hijri: 93 / 94 SH
Iranian calendar; Nowruz (new year) falls on the spring equinox.
Ethiopian: 707 / 708 ET
Year boundary at Enkutatash (September 11/12).
Indian National (Saka): 637 / 636 Saka
Indian national calendar; year starts in March.

Properties

Parity: Odd
Digit count: 3
Digit sum: 13
Digit product: 35
Digital root: 4
Palindrome: No
Bit width: 10 bits
Reversed: 517
Recamán's sequence: a(2,194) = 715
Square (n²): 511,225
Cube (n³): 365,525,875
Divisor count: 8
σ(n) — sum of divisors: 1,008
φ(n) — Euler's totient: 480
Sum of prime factors: 29

Primality

Prime factorization: 5 × 11 × 13

Nearest primes: 709 (−6) · 719 (+4)

Divisors & multiples

All divisors (8)

1 · 5 · 11 · 13 · 55 · 65 · 143 · 715

Aliquot sum (sum of proper divisors): 293

Factor pairs (a × b = 715)

1 × 715

5 × 143

11 × 65

13 × 55

First multiples

715 · 1,430 (double) · 2,145 · 2,860 · 3,575 · 4,290 · 5,005 · 5,720 · 6,435 · 7,150

Sums & aliquot sequence

As consecutive integers: 357 + 358 141 + 142 + 143 + 144 + 145 67 + 68 + … + 76 60 + 61 + … + 70

Aliquot sequence: 715 → 293 → 1 → 0 — terminates at zero

Representations

In words: seven hundred fifteen
Ordinal: 715th
Roman numeral: DCCXV
Binary: 1011001011
Octal: 1313
Hexadecimal: 0x2CB
Base64: Ass=
One's complement: 64,820 (16-bit)

In other bases

ternary (3) 222111

quaternary (4) 23023

quinary (5) 10330

senary (6) 3151

septenary (7) 2041

nonary (9) 874

undecimal (11) 5a0

duodecimal (12) 4b7

tridecimal (13) 430

tetradecimal (14) 391

pentadecimal (15) 32a

Historical numeral systems

Babylonian (base 60): 𒌋𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic: 𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓏺𓏺𓏺𓏺𓏺
Greek (Milesian): ψιεʹ
Mayan (base 20): 𝋡·𝋯·𝋯
Chinese: 七百一十五
Chinese (financial): 柒佰壹拾伍

In other modern scripts

Eastern Arabic ٧١٥ Devanagari ७१५ Bengali ৭১৫ Tamil ௭௧௫ Thai ๗๑๕ Tibetan ༧༡༥ Khmer ៧១៥ Lao ໗໑໕ Burmese ၇၁၅

Digit at this position in famous constants

π — Pi (π): Digit 715 = 9
e — Euler's number (e): Digit 715 = 1
φ — Golden ratio (φ): Digit 715 = 3
√2 — Pythagoras's (√2): Digit 715 = 4
ln 2 — Natural log of 2: Digit 715 = 6
γ — Euler-Mascheroni (γ): Digit 715 = 0

Also seen as

Unicode codepoint

Modifier Letter Grave Accent

U+02CB

Modifier letter (Lm)

UTF-8 encoding: CB 8B (2 bytes).

Lookup U+02CB on Compart ↗ Lookup on FileFormat.Info ↗

Hex color

#0002CB

RGB(0, 2, 203)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.2.203.

Address: 0.0.2.203
Class: reserved
IPv4-mapped IPv6: ::ffff:0.0.2.203

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

NANP area code 715

The number 715 is an active NANP area code (North American Numbering Plan).

Primary area: Northern Wisconsin
Region: Wisconsin
Country: United States

Most NANP area codes have multiple overlays in dense regions; the primary area listed is the historic/largest population center for this code.

Look up area code 715 ↗