Number

553

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

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

Historical context — 553 AD

Calendar year

Year 553 (DLIII) was a common year starting on Wednesday of the Julian calendar.

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Historical context — 553 BC

Calendar year

The year 553 BC was a year of the pre-Julian Roman calendar.

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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: Monday
January 1, 553
Ended on: Monday
December 31, 553
Friday the 13ths: 2
2 Friday the 13ths this year.
Decade: 550s
550–559
Century: 6th century
501–600
Millennium: 1st millennium
1–1000
Years ago: 1,473
1473 years before 2026.

In other calendars

Hebrew: 4313 / 4314 AM
Rosh Hashanah falls in September/October.
Chinese: Year of the zodiac:Water zodiac:Rooster
Sexagenary cycle position 10 of 60. Lunar new year falls in late January / mid-February.
Buddhist Era: 1096 BE
Counted from the parinirvana of the Buddha (Theravada / Thai / Sri Lankan convention).
Ethiopian: 545 / 546 ET
Year boundary at Enkutatash (September 11/12).
Indian National (Saka): 475 / 474 Saka
Indian national calendar; year starts in March.

Properties

Parity: Odd
Digit count: 3
Digit sum: 13
Digit product: 75
Digital root: 4
Palindrome: No
Bit width: 10 bits
Reversed: 355
Recamán's sequence: a(1,153) = 553
Square (n²): 305,809
Cube (n³): 169,112,377
Divisor count: 4
σ(n) — sum of divisors: 640
φ(n) — Euler's totient: 468
Sum of prime factors: 86

Primality

Prime factorization: 7 × 79

Nearest primes: 547 (−6) · 557 (+4)

Divisors & multiples

All divisors (4)

1 · 7 · 79 · 553

Aliquot sum (sum of proper divisors): 87

Factor pairs (a × b = 553)

1 × 553

7 × 79

First multiples

553 · 1,106 (double) · 1,659 · 2,212 · 2,765 · 3,318 · 3,871 · 4,424 · 4,977 · 5,530

Sums & aliquot sequence

As consecutive integers: 276 + 277 76 + 77 + … + 82 33 + 34 + … + 46

Aliquot sequence: 553 → 87 → 33 → 15 → 9 → 4 → 3 → 1 → 0 — terminates at zero

Representations

In words: five hundred fifty-three
Ordinal: 553rd
Roman numeral: DLIII
Binary: 1000101001
Octal: 1051
Hexadecimal: 0x229
Base64: Aik=
One's complement: 64,982 (16-bit)

In other bases

ternary (3) 202111

quaternary (4) 20221

quinary (5) 4203

senary (6) 2321

septenary (7) 1420

nonary (9) 674

undecimal (11) 463

duodecimal (12) 3a1

tridecimal (13) 337

tetradecimal (14) 2b7

pentadecimal (15) 26d

Historical numeral systems

Babylonian (base 60): 𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒁹𒁹𒁹
Egyptian hieroglyphic: 𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺
Greek (Milesian): φνγʹ
Mayan (base 20): 𝋡·𝋧·𝋭
Chinese: 五百五十三
Chinese (financial): 伍佰伍拾參

In other modern scripts

Eastern Arabic ٥٥٣ Devanagari ५५३ Bengali ৫৫৩ Tamil ௫௫௩ Thai ๕๕๓ Tibetan ༥༥༣ Khmer ៥៥៣ Lao ໕໕໓ Burmese ၅၅၃

Digit at this position in famous constants

π — Pi (π): Digit 553 = 0
e — Euler's number (e): Digit 553 = 8
φ — Golden ratio (φ): Digit 553 = 8
√2 — Pythagoras's (√2): Digit 553 = 7
ln 2 — Natural log of 2: Digit 553 = 3
γ — Euler-Mascheroni (γ): Digit 553 = 8

Also seen as

Unicode codepoint

Latin Small Letter E With Cedilla

U+0229

Lowercase letter (Ll)

UTF-8 encoding: C8 A9 (2 bytes).

Lookup U+0229 on Compart ↗ Lookup on FileFormat.Info ↗

Hex color

#000229

RGB(0, 2, 41)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.2.41.

Address: 0.0.2.41
Class: reserved
IPv4-mapped IPv6: ::ffff:0.0.2.41

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