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1,006,556

1,006,556 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.).

1,006,556 (one million six thousand five hundred fifty-six) is an even 7-digit number. It is a composite number with 6 divisors, and factors as 2² × 251,639. Written other ways, in hexadecimal, 0xF5BDC.

Arithmetic Number Cube-Free Deficient Number Evil Number

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
23
Digit product
0
Digital root
5
Palindrome
No
Bit width
20 bits
Reversed
6,556,001
Square (n²)
1,013,154,981,136
Cube (n³)
1,019,797,225,192,327,616
Divisor count
6
σ(n) — sum of divisors
1,761,480
φ(n) — Euler's totient
503,276
Sum of prime factors
251,643

Primality

Prime factorization: 2 2 × 251639

Nearest primes: 1,006,547 (−9) · 1,006,559 (+3)

Divisors & multiples

All divisors (6)
1 · 2 · 4 · 251639 · 503278 (half) · 1006556
Aliquot sum (sum of proper divisors): 754,924
Factor pairs (a × b = 1,006,556)
1 × 1006556
2 × 503278
4 × 251639
First multiples
1,006,556 · 2,013,112 (double) · 3,019,668 · 4,026,224 · 5,032,780 · 6,039,336 · 7,045,892 · 8,052,448 · 9,059,004 · 10,065,560

Sums & aliquot sequence

As consecutive integers: 125,816 + 125,817 + … + 125,823
Aliquot sequence: 1,006,556 754,924 583,476 777,996 1,188,696 1,783,104 3,081,504 5,007,696 7,928,976 14,417,808 24,790,992 39,550,128 62,621,160 154,139,160 374,340,840 799,403,160 1,598,806,680 — unresolved within range

Continued fraction of √n

√1,006,556 = [1003; (3, 1, 2, 99, 1, 26, 2, 79, 1, 3, 2, 1, 2, 1, 5, 3, 1, 5, 5, 6, 7, 3, 14, 8, …)]

Representations

In words
one million six thousand five hundred fifty-six
Ordinal
1006556th
Binary
11110101101111011100
Octal
3655734
Hexadecimal
0xF5BDC
Base64
D1vc
One's complement
4,293,960,739 (32-bit)
Scientific notation
1.006556 × 10⁶
As a duration
1,006,556 s = 11 days, 15 hours, 35 minutes, 56 seconds
In other bases
ternary (3) 1220010201212
quaternary (4) 3311233130
quinary (5) 224202211
senary (6) 33323552
septenary (7) 11361365
nonary (9) 1803655
undecimal (11) 628271
duodecimal (12) 4065b8
tridecimal (13) 2931c5
tetradecimal (14) 1c2b6c
pentadecimal (15) 14d38b

As an angle

1,006,556° = 2,795 × 360° + 356°
356° ≈ 6.213 rad
Compass bearing: N (north)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓁨𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺
Chinese
一百萬六千五百五十六
Chinese (financial)
壹佰萬陸仟伍佰伍拾陸
In other modern scripts
Eastern Arabic ١٠٠٦٥٥٦ Devanagari १००६५५६ Bengali ১০০৬৫৫৬ Tamil ௧௦௦௬௫௫௬ Thai ๑๐๐๖๕๕๖ Tibetan ༡༠༠༦༥༥༦ Khmer ១០០៦៥៥៦ Lao ໑໐໐໖໕໕໖ Burmese ၁၀၀၆၅၅၆

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1006556, here are decompositions:

  • 13 + 1006543 = 1006556
  • 43 + 1006513 = 1006556
  • 163 + 1006393 = 1006556
  • 223 + 1006333 = 1006556
  • 277 + 1006279 = 1006556
  • 307 + 1006249 = 1006556
  • 337 + 1006219 = 1006556
  • 367 + 1006189 = 1006556

Showing the first eight; more decompositions exist.

Hex color
#0F5BDC
RGB(15, 91, 220)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.91.220.

Address
0.15.91.220
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.91.220

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 1,006,556 and was likely granted around 1911.

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

Position in π

The digit sequence 1006556 first appears in π at position 377,846 of the decimal expansion (the 377,846ordinal-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°.