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1,005,250

1,005,250 is a composite number, even.

This number doesn't have a permanent NumberWiki page yet — what you see below is computed live. Pages get added to the permanent index when they're notable (years, primes, curated, etc.).

1,005,250 (one million five thousand two hundred fifty) is an even 7-digit number. It is a composite number with 16 divisors, and factors as 2 × 5³ × 4,021. Written other ways, in hexadecimal, 0xF56C2.

Deficient Number Gapful Number Odious Number Pernicious Number Self Number

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
13
Digit product
0
Digital root
4
Palindrome
No
Bit width
20 bits
Reversed
525,001
Square (n²)
1,010,527,562,500
Cube (n³)
1,015,832,832,203,125,000
Divisor count
16
σ(n) — sum of divisors
1,882,296
φ(n) — Euler's totient
402,000
Sum of prime factors
4,038

Primality

Prime factorization: 2 × 5 3 × 4021

Nearest primes: 1,005,241 (−9) · 1,005,269 (+19)

Divisors & multiples

All divisors (16)
1 · 2 · 5 · 10 · 25 · 50 · 125 · 250 · 4021 · 8042 · 20105 · 40210 · 100525 · 201050 · 502625 (half) · 1005250
Aliquot sum (sum of proper divisors): 877,046
Factor pairs (a × b = 1,005,250)
1 × 1005250
2 × 502625
5 × 201050
10 × 100525
25 × 40210
50 × 20105
125 × 8042
250 × 4021
First multiples
1,005,250 · 2,010,500 (double) · 3,015,750 · 4,021,000 · 5,026,250 · 6,031,500 · 7,036,750 · 8,042,000 · 9,047,250 · 10,052,500

Sums & aliquot sequence

As a sum of two squares: 57² + 1,001² = 299² + 957² = 335² + 945² = 555² + 835²
As consecutive integers: 251,311 + 251,312 + 251,313 + 251,314 201,048 + 201,049 + 201,050 + 201,051 + 201,052 50,253 + 50,254 + … + 50,272 40,198 + 40,199 + … + 40,222
Aliquot sequence: 1,005,250 877,046 438,526 303,362 151,684 134,280 303,300 650,198 345,994 220,214 113,626 56,816 57,016 49,904 46,816 74,144 93,184 — unresolved within range

Continued fraction of √n

√1,005,250 = [1002; (1, 1, 1, 1, 1, 3, 1, 11, 1, 4, 1, 4, 5, 7, 7, 1, 10, 1, 1, 1, 5, 17, 1, 7, …)]

Representations

In words
one million five thousand two hundred fifty
Ordinal
1005250th
Binary
11110101011011000010
Octal
3653302
Hexadecimal
0xF56C2
Base64
D1bC
One's complement
4,293,962,045 (32-bit)
Scientific notation
1.00525 × 10⁶
As a duration
1,005,250 s = 11 days, 15 hours, 14 minutes, 10 seconds
In other bases
ternary (3) 1220001221111
quaternary (4) 3311123002
quinary (5) 224132000
senary (6) 33313534
septenary (7) 11354521
nonary (9) 1801844
undecimal (11) 627294
duodecimal (12) 4058aa
tridecimal (13) 29272c
tetradecimal (14) 1c24b8
pentadecimal (15) 14ccba

As an angle

1,005,250° = 2,792 × 360° + 130°
130° ≈ 2.269 rad
Compass bearing: SE (southeast)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒁹𒁹𒁹𒁹 𒌋
Egyptian hieroglyphic
𓁨𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓎆𓎆𓎆𓎆𓎆
Chinese
一百萬五千二百五十
Chinese (financial)
壹佰萬伍仟貳佰伍拾
In other modern scripts
Eastern Arabic ١٠٠٥٢٥٠ Devanagari १००५२५० Bengali ১০০৫২৫০ Tamil ௧௦௦௫௨௫௦ Thai ๑๐๐๕๒๕๐ Tibetan ༡༠༠༥༢༥༠ Khmer ១០០៥២៥០ Lao ໑໐໐໕໒໕໐ Burmese ၁၀၀၅၂၅၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1005250, here are decompositions:

  • 11 + 1005239 = 1005250
  • 41 + 1005209 = 1005250
  • 47 + 1005203 = 1005250
  • 89 + 1005161 = 1005250
  • 107 + 1005143 = 1005250
  • 149 + 1005101 = 1005250
  • 179 + 1005071 = 1005250
  • 263 + 1004987 = 1005250

Showing the first eight; more decompositions exist.

Hex color
#0F56C2
RGB(15, 86, 194)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.86.194.

Address
0.15.86.194
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.86.194

Unspecified address (0.0.0.0/8) — "this network" placeholder.

Possible US patent number

This number falls in the range of US utility patent numbers. If it's a patent, it would be issued as US 1,005,250 and was likely granted around 1911.

Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.

Related reading

  • Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.