55,200
55,200 is a composite number, even.
55,200 (fifty-five thousand two hundred) is an even 5-digit number. It is a composite number with 72 divisors, and factors as 2⁵ × 3 × 5² × 23. Its proper divisors sum to 132,288, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xD7A0.
Interestingness
Properties
- Parity
- Even
- Digit count
- 5
- Digit sum
- 12
- Digit product
- 0
- Digital root
- 3
- Palindrome
- No
- Bit width
- 16 bits
- Reversed
- 255
- Recamán's sequence
- a(141,155) = 55,200
- Square (n²)
- 3,047,040,000
- Cube (n³)
- 168,196,608,000,000
- Divisor count
- 72
- σ(n) — sum of divisors
- 187,488
- φ(n) — Euler's totient
- 14,080
- Sum of prime factors
- 46
Primality
Prime factorization: 2 5 × 3 × 5 2 × 23
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√55,200 = [234; (1, 17, 1, 3, 1, 17, 1, 468)]
Period length 8 — the block in parentheses repeats forever.
Representations
- In words
- fifty-five thousand two hundred
- Ordinal
- 55200th
- Binary
- 1101011110100000
- Octal
- 153640
- Hexadecimal
- 0xD7A0
- Base64
- 16A=
- One's complement
- 10,335 (16-bit)
- Scientific notation
- 5.52 × 10⁴
- As a duration
- 55,200 s = 15 hours, 20 minutes
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋 ·
- Egyptian hieroglyphic
- 𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓍢𓍢
- Greek (Milesian)
- ͵νεσʹ
- Mayan (base 20)
- 𝋦·𝋲·𝋠·𝋠
- Chinese
- 五萬五千二百
- Chinese (financial)
- 伍萬伍仟貳佰
Digit at this position in famous constants
- π — Pi (π)
- Digit 55,200 = 7
- e — Euler's number (e)
- Digit 55,200 = 2
- φ — Golden ratio (φ)
- Digit 55,200 = 5
- √2 — Pythagoras's (√2)
- Digit 55,200 = 7
- ln 2 — Natural log of 2
- Digit 55,200 = 7
- γ — Euler-Mascheroni (γ)
- Digit 55,200 = 7
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 55200, here are decompositions:
- 29 + 55171 = 55200
- 37 + 55163 = 55200
- 53 + 55147 = 55200
- 73 + 55127 = 55200
- 83 + 55117 = 55200
- 97 + 55103 = 55200
- 127 + 55073 = 55200
- 139 + 55061 = 55200
Showing the first eight; more decompositions exist.
UTF-8 encoding: ED 9E A0 (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.215.160.
- Address
- 0.0.215.160
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.215.160
Unspecified address (0.0.0.0/8) — "this network" placeholder.
The digit sequence 55200 first appears in π at position 185,520 of the decimal expansion (the 185,520ordinal-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°.