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Number

537

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

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

Notable events — 537 AD

Dec 27 The Hagia Sophia is dedicated in Constantinople.

Events compiled from Wikipedia ↗ · Licensed CC BY-SA 4.0

Historical context — 537 BC

Calendar year

The year 537 BC was a year of the pre-Julian Roman calendar.

Excerpt from Wikipedia (en) ↗ · Licensed CC BY-SA 4.0 · English fallback Read the full article on Wikipedia →

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, 537
Ended on: Tuesday
December 31, 537
Friday the 13ths: 2
2 Friday the 13ths this year.
Decade: 530s
530–539
Century: 6th century
501–600
Millennium: 1st millennium
1–1000
Years ago: 1,489
1489 years before 2026.

In other calendars

Hebrew: 4297 / 4298 AM
Rosh Hashanah falls in September/October.
Chinese: Year of the zodiac:Fire zodiac:Snake
Sexagenary cycle position 54 of 60. Lunar new year falls in late January / mid-February.
Buddhist Era: 1080 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
Ethiopian: 529 / 530 ET
Year boundary at Enkutatash (September 11/12).
Indian National (Saka): 459 / 458 Saka
Indian national calendar; year starts in March.

Properties

Parity: Odd
Digit count: 3
Digit sum: 15
Digit product: 105
Digital root: 6
Palindrome: No
Bit width: 10 bits
Reversed: 735
Recamán's sequence: a(1,185) = 537
Square (n²): 288,369
Cube (n³): 154,854,153
Divisor count: 4
σ(n) — sum of divisors: 720
φ(n) — Euler's totient: 356
Sum of prime factors: 182

Primality

Prime factorization: 3 × 179

Nearest primes: 523 (−14) · 541 (+4)

Divisors & multiples

All divisors (4)

1 · 3 · 179 · 537

Aliquot sum (sum of proper divisors): 183

Factor pairs (a × b = 537)

1 × 537

3 × 179

First multiples

537 · 1,074 (double) · 1,611 · 2,148 · 2,685 · 3,222 · 3,759 · 4,296 · 4,833 · 5,370

Sums & aliquot sequence

As consecutive integers: 268 + 269 178 + 179 + 180 87 + 88 + 89 + 90 + 91 + 92

Aliquot sequence: 537 → 183 → 65 → 19 → 1 → 0 — terminates at zero

Representations

In words: five hundred thirty-seven
Ordinal: 537th
Roman numeral: DXXXVII
Binary: 1000011001
Octal: 1031
Hexadecimal: 0x219
Base64: Ahk=
One's complement: 64,998 (16-bit)

In other bases

ternary (3) 201220

quaternary (4) 20121

quinary (5) 4122

senary (6) 2253

septenary (7) 1365

nonary (9) 656

undecimal (11) 449

duodecimal (12) 389

tridecimal (13) 324

tetradecimal (14) 2a5

pentadecimal (15) 25c

Historical numeral systems

Babylonian (base 60): 𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic: 𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian): φλζʹ
Mayan (base 20): 𝋡·𝋦·𝋱
Chinese: 五百三十七
Chinese (financial): 伍佰參拾柒

In other modern scripts

Eastern Arabic ٥٣٧ Devanagari ५३७ Bengali ৫৩৭ Tamil ௫௩௭ Thai ๕๓๗ Tibetan ༥༣༧ Khmer ៥៣៧ Lao ໕໓໗ Burmese ၅၃၇

Digit at this position in famous constants

π — Pi (π): Digit 537 = 2
e — Euler's number (e): Digit 537 = 9
φ — Golden ratio (φ): Digit 537 = 7
√2 — Pythagoras's (√2): Digit 537 = 6
ln 2 — Natural log of 2: Digit 537 = 2
γ — Euler-Mascheroni (γ): Digit 537 = 9

Also seen as

Unicode codepoint

ș

Latin Small Letter S With Comma Below

U+0219

Lowercase letter (Ll)

UTF-8 encoding: C8 99 (2 bytes).

Lookup U+0219 on Compart ↗ Lookup on FileFormat.Info ↗

Hex color

#000219

RGB(0, 2, 25)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.2.25.

Address: 0.0.2.25
Class: reserved
IPv4-mapped IPv6: ::ffff:0.0.2.25

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

Calculator-display word

Type 537 on a seven-segment calculator, flip it 180°, and the display reads:

LES

A staple of calculator humor since pocket calculators put digits in front of bored students.