528,440
528,440 is a composite number, even.
528,440 (five hundred twenty-eight thousand four hundred forty) is an even 6-digit number. It is a composite number with 32 divisors, and factors as 2³ × 5 × 11 × 1,201. Its proper divisors sum to 769,720, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x81038.
Interestingness
Properties
- Parity
- Even
- Digit count
- 6
- Digit sum
- 23
- Digit product
- 0
- Digital root
- 5
- Palindrome
- No
- Bit width
- 20 bits
- Reversed
- 44,825
- Square (n²)
- 279,248,833,600
- Cube (n³)
- 147,566,253,627,584,000
- Divisor count
- 32
- σ(n) — sum of divisors
- 1,298,160
- φ(n) — Euler's totient
- 192,000
- Sum of prime factors
- 1,223
Primality
Prime factorization: 2 3 × 5 × 11 × 1201
Divisors & multiples
Sums & aliquot sequence
Continued fraction of √n
√528,440 = [726; (1, 15, 2, 1, 35, 1, 2, 15, 1, 1452)]
Period length 10 — the block in parentheses repeats forever.
Representations
- In words
- five hundred twenty-eight thousand four hundred forty
- Ordinal
- 528440th
- Binary
- 10000001000000111000
- Octal
- 2010070
- Hexadecimal
- 0x81038
- Base64
- CBA4
- One's complement
- 4,294,438,855 (32-bit)
- Scientific notation
- 5.2844 × 10⁵
- As a duration
- 528,440 s = 6 days, 2 hours, 47 minutes, 20 seconds
As an angle
Historical numeral systems
- Babylonian (base 60)
- 𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋
- Egyptian hieroglyphic
- 𓆐𓆐𓆐𓆐𓆐𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆
- Greek (Milesian)
- ͵φκηυμʹ
- Chinese
- 五十二萬八千四百四十
- Chinese (financial)
- 伍拾貳萬捌仟肆佰肆拾
Also seen as
Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 528440, here are decompositions:
- 7 + 528433 = 528440
- 37 + 528403 = 528440
- 67 + 528373 = 528440
- 127 + 528313 = 528440
- 151 + 528289 = 528440
- 193 + 528247 = 528440
- 223 + 528217 = 528440
- 277 + 528163 = 528440
Showing the first eight; more decompositions exist.
As an unsigned 32-bit integer, this is the IPv4 address 0.8.16.56.
- Address
- 0.8.16.56
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.8.16.56
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 528,440 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 528440 first appears in π at position 276,346 of the decimal expansion (the 276,346ordinal-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°.