55,380
55,380 is a composite number, even.
55,380 (fifty-five thousand three hundred eighty) is an even 5-digit number. It is a composite number with 48 divisors, and factors as 2² × 3 × 5 × 13 × 71. Its proper divisors sum to 113,964, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xD854.
Interestingness
Properties
- Parity
- Even
- Digit count
- 5
- Digit sum
- 21
- Digit product
- 0
- Digital root
- 3
- Palindrome
- No
- Bit width
- 16 bits
- Reversed
- 8,355
- Recamán's sequence
- a(140,795) = 55,380
- Square (n²)
- 3,066,944,400
- Cube (n³)
- 169,847,380,872,000
- Divisor count
- 48
- σ(n) — sum of divisors
- 169,344
- φ(n) — Euler's totient
- 13,440
- Sum of prime factors
- 96
Primality
Prime factorization: 2 2 × 3 × 5 × 13 × 71
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√55,380 = [235; (3, 29, 12, 29, 3, 470)]
Period length 6 — the block in parentheses repeats forever.
Representations
- In words
- fifty-five thousand three hundred eighty
- Ordinal
- 55380th
- Binary
- 1101100001010100
- Octal
- 154124
- Hexadecimal
- 0xD854
- Base64
- 2FQ=
- One's complement
- 10,155 (16-bit)
- Scientific notation
- 5.538 × 10⁴
- As a duration
- 55,380 s = 15 hours, 23 minutes
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹 ·
- Egyptian hieroglyphic
- 𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆
- Greek (Milesian)
- ͵νετπʹ
- Mayan (base 20)
- 𝋦·𝋲·𝋩·𝋠
- Chinese
- 五萬五千三百八十
- Chinese (financial)
- 伍萬伍仟參佰捌拾
Digit at this position in famous constants
- π — Pi (π)
- Digit 55,380 = 5
- e — Euler's number (e)
- Digit 55,380 = 3
- φ — Golden ratio (φ)
- Digit 55,380 = 2
- √2 — Pythagoras's (√2)
- Digit 55,380 = 9
- ln 2 — Natural log of 2
- Digit 55,380 = 1
- γ — Euler-Mascheroni (γ)
- Digit 55,380 = 7
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 55380, here are decompositions:
- 7 + 55373 = 55380
- 29 + 55351 = 55380
- 37 + 55343 = 55380
- 41 + 55339 = 55380
- 43 + 55337 = 55380
- 47 + 55333 = 55380
- 67 + 55313 = 55380
- 89 + 55291 = 55380
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.0.216.84.
- Address
- 0.0.216.84
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.216.84
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 55380 first appears in π at position 124,234 of the decimal expansion (the 124,234ordinal-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.
Related reading
- Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.