520,380
520,380 is a composite number, even.
520,380 (five hundred twenty thousand three hundred eighty) is an even 6-digit number. It is a composite number with 108 divisors, and factors as 2² × 3² × 5 × 7² × 59. Its proper divisors sum to 1,346,940, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x7F0BC.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 18
- Digit product
- 0
- Digital root
- 9
- Palindrome
- No
- Bit width
- 19 bits
- Reversed
- 83,025
- Square (n²)
- 270,795,344,400
- Cube (n³)
- 140,916,481,318,872,000
- Divisor count
- 108
- σ(n) — sum of divisors
- 1,867,320
- φ(n) — Euler's totient
- 116,928
- Sum of prime factors
- 88
Primality
Prime factorization: 2 2 × 3 2 × 5 × 7 2 × 59
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√520,380 = [721; (2, 1, 2, 11, 1, 1, 4, 1, 1, 1, 6, 29, 3, 2, 2, 4, 24, 4, 2, 2, 3, 29, 6, 1, …)]
Period length 34 — the block in parentheses repeats forever.
Representations
- In words
- five hundred twenty thousand three hundred eighty
- Ordinal
- 520380th
- Binary
- 1111111000010111100
- Octal
- 1770274
- Hexadecimal
- 0x7F0BC
- Base64
- B/C8
- One's complement
- 4,294,446,915 (32-bit)
- Scientific notation
- 5.2038 × 10⁵
- As a duration
- 520,380 s = 6 days, 33 minutes
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹 ·
- Egyptian hieroglyphic
- 𓆐𓆐𓆐𓆐𓆐𓂍𓂍𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆
- Greek (Milesian)
- ͵φκτπʹ
- Chinese
- 五十二萬零三百八十
- Chinese (financial)
- 伍拾貳萬零參佰捌拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 520380, here are decompositions:
- 11 + 520369 = 520380
- 17 + 520363 = 520380
- 19 + 520361 = 520380
- 23 + 520357 = 520380
- 31 + 520349 = 520380
- 41 + 520339 = 520380
- 67 + 520313 = 520380
- 71 + 520309 = 520380
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.7.240.188.
- Address
- 0.7.240.188
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.7.240.188
Unspecified address (0.0.0.0/8) — "this network" placeholder.
This number falls in the range of US utility patent numbers. If it's a patent, it would be issued as US 520,380 and was likely granted around 1894.
Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.
The digit sequence 520380 first appears in π at position 15,801 of the decimal expansion (the 15,801ordinal-suffix:st 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°.