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1,000,256

1,000,256 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.).

1,000,256 (one million two hundred fifty-six) is an even 7-digit number. It is a composite number with 14 divisors, and factors as 2⁶ × 15,629. Written other ways, in hexadecimal, 0xF4340.

Deficient Number Evil Number Gapful Number Self Number

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
14
Digit product
0
Digital root
5
Palindrome
No
Bit width
20 bits
Reversed
6,520,001
Square (n²)
1,000,512,065,536
Cube (n³)
1,000,768,196,624,777,216
Divisor count
14
σ(n) — sum of divisors
1,985,010
φ(n) — Euler's totient
500,096
Sum of prime factors
15,641

Primality

Prime factorization: 2 6 × 15629

Nearest primes: 1,000,253 (−3) · 1,000,273 (+17)

Divisors & multiples

All divisors (14)
1 · 2 · 4 · 8 · 16 · 32 · 64 · 15629 · 31258 · 62516 · 125032 · 250064 · 500128 (half) · 1000256
Aliquot sum (sum of proper divisors): 984,754
Factor pairs (a × b = 1,000,256)
1 × 1000256
2 × 500128
4 × 250064
8 × 125032
16 × 62516
32 × 31258
64 × 15629
First multiples
1,000,256 · 2,000,512 (double) · 3,000,768 · 4,001,024 · 5,001,280 · 6,001,536 · 7,001,792 · 8,002,048 · 9,002,304 · 10,002,560

Sums & aliquot sequence

As a sum of two squares: 16² + 1,000²
As consecutive integers: 7,751 + 7,752 + … + 7,878
Aliquot sequence: 1,000,256 984,754 492,380 689,668 689,724 1,551,060 3,830,316 6,384,084 10,640,364 17,922,324 29,870,764 35,721,812 35,721,868 41,650,532 49,741,468 60,031,412 66,704,428 — unresolved within range

Continued fraction of √n

√1,000,256 = [1000; (7, 1, 4, 2, 1, 7, 7, 1, 30, 2, 1, 1, 1, 7, 5, 3, 7, 1, 1, 499, 1, 1, 7, 3, …)]

Period length 40 — the block in parentheses repeats forever.

Representations

In words
one million two hundred fifty-six
Ordinal
1000256th
Binary
11110100001101000000
Octal
3641500
Hexadecimal
0xF4340
Base64
D0NA
One's complement
4,293,967,039 (32-bit)
Scientific notation
1.000256 × 10⁶
As a duration
1,000,256 s = 11 days, 13 hours, 50 minutes, 56 seconds
In other bases
ternary (3) 1212211002112
quaternary (4) 3310031000
quinary (5) 224002011
senary (6) 33234452
septenary (7) 11334125
nonary (9) 1784075
undecimal (11) 623564
duodecimal (12) 402a28
tridecimal (13) 29038a
tetradecimal (14) 1c074c
pentadecimal (15) 14b58b

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓁨𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺
Chinese
一百萬零二百五十六
Chinese (financial)
壹佰萬零貳佰伍拾陸
In other modern scripts
Eastern Arabic ١٠٠٠٢٥٦ Devanagari १०००२५६ Bengali ১০০০২৫৬ Tamil ௧௦௦௦௨௫௬ Thai ๑๐๐๐๒๕๖ Tibetan ༡༠༠༠༢༥༦ Khmer ១០០០២៥៦ Lao ໑໐໐໐໒໕໖ Burmese ၁၀၀၀၂၅၆

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1000256, here are decompositions:

  • 3 + 1000253 = 1000256
  • 7 + 1000249 = 1000256
  • 43 + 1000213 = 1000256
  • 73 + 1000183 = 1000256
  • 97 + 1000159 = 1000256
  • 139 + 1000117 = 1000256
  • 157 + 1000099 = 1000256
  • 223 + 1000033 = 1000256

Showing the first eight; more decompositions exist.

Hex color
#0F4340
RGB(15, 67, 64)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.67.64.

Address
0.15.67.64
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.67.64

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 1,000,256 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°.