5,220
5,220 is a composite number, even.
5,220 (five thousand two hundred twenty) is an even 4-digit number. It is a composite number with 36 divisors, and factors as 2² × 3² × 5 × 29. Its proper divisors sum to 11,160, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x1464.
Interestingness
Properties
Primality
Prime factorization: 2 2 × 3 2 × 5 × 29
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√5,220 = [72; (4, 144)]
Period length 2 — the block in parentheses repeats forever.
Representations
- In words
- five thousand two hundred twenty
- Ordinal
- 5220th
- Binary
- 1010001100100
- Octal
- 12144
- Hexadecimal
- 0x1464
- Base64
- FGQ=
- One's complement
- 60,315 (16-bit)
- Scientific notation
- 5.22 × 10³
- As a duration
- 5,220 s = 1 hour, 27 minutes
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 ·
- Egyptian hieroglyphic
- 𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓎆𓎆
- Greek (Milesian)
- ͵εσκʹ
- Mayan (base 20)
- 𝋭·𝋡·𝋠
- Chinese
- 五千二百二十
- Chinese (financial)
- 伍仟貳佰貳拾
Digit at this position in famous constants
- π — Pi (π)
- Digit 5,220 = 8
- e — Euler's number (e)
- Digit 5,220 = 7
- φ — Golden ratio (φ)
- Digit 5,220 = 7
- √2 — Pythagoras's (√2)
- Digit 5,220 = 4
- ln 2 — Natural log of 2
- Digit 5,220 = 9
- γ — Euler-Mascheroni (γ)
- Digit 5,220 = 8
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 5220, here are decompositions:
- 11 + 5209 = 5220
- 23 + 5197 = 5220
- 31 + 5189 = 5220
- 41 + 5179 = 5220
- 53 + 5167 = 5220
- 67 + 5153 = 5220
- 73 + 5147 = 5220
- 101 + 5119 = 5220
Showing the first eight; more decompositions exist.
UTF-8 encoding: E1 91 A4 (3 bytes).
As an unsigned 32-bit integer, this is the IPv4 address 0.0.20.100.
- Address
- 0.0.20.100
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.20.100
Unspecified address (0.0.0.0/8) — "this network" placeholder.
Heard as a frequency, 5,220 Hz is closest to:
- Concert pitch (A4 = 440 Hz): E8 (5274 Hz, -18¢)
- Scientific pitch (C4 = 256 Hz): E8 (5160.6 Hz, +20¢)
- Baroque pitch (A4 = 415 Hz): F8 (5270.2 Hz, -17¢)
The digit sequence 5220 first appears in π at position 7,717 of the decimal expansion (the 7,717ordinal-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°.