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998,722

998,722 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.).

998,722 (nine hundred ninety-eight thousand seven hundred twenty-two) is an even 6-digit number. It is a composite number with 4 divisors, and factors as 2 × 499,361. Written other ways, in hexadecimal, 0xF3D42.

Cube-Free Deficient Number Odious Number Pernicious Number Semiprime Squarefree

Interestingness

Properties

Parity
Even
Digit count
6
Digit sum
37
Digit product
18,144
Digital root
1
Palindrome
No
Bit width
20 bits
Reversed
227,899
Square (n²)
997,445,633,284
Cube (n³)
996,170,897,764,663,048
Divisor count
4
σ(n) — sum of divisors
1,498,086
φ(n) — Euler's totient
499,360
Sum of prime factors
499,363

Primality

Prime factorization: 2 × 499361

Nearest primes: 998,717 (−5) · 998,737 (+15)

Divisors & multiples

All divisors (4)
1 · 2 · 499361 (half) · 998722
Aliquot sum (sum of proper divisors): 499,364
Factor pairs (a × b = 998,722)
1 × 998722
2 × 499361
First multiples
998,722 · 1,997,444 (double) · 2,996,166 · 3,994,888 · 4,993,610 · 5,992,332 · 6,991,054 · 7,989,776 · 8,988,498 · 9,987,220

Sums & aliquot sequence

As a sum of two squares: 129² + 991²
As consecutive integers: 249,679 + 249,680 + 249,681 + 249,682
Aliquot sequence: 998,722 499,364 382,300 447,508 381,824 423,976 506,264 539,116 422,516 331,216 319,536 705,696 1,147,008 2,035,392 3,350,424 7,593,576 11,574,264 — unresolved within range

Continued fraction of √n

√998,722 = [999; (2, 1, 3, 2, 1, 1, 1, 3, 31, 2, 4, 1, 1, 14, 25, 1, 1, 3, 1, 34, 3, 2, 15, 15, …)]

Period length 47 — the block in parentheses repeats forever.

Representations

In words
nine hundred ninety-eight thousand seven hundred twenty-two
Ordinal
998722nd
Binary
11110011110101000010
Octal
3636502
Hexadecimal
0xF3D42
Base64
Dz1C
One's complement
4,293,968,573 (32-bit)
Scientific notation
9.98722 × 10⁵
As a duration
998,722 s = 11 days, 13 hours, 25 minutes, 22 seconds
In other bases
ternary (3) 1212201222201
quaternary (4) 3303311002
quinary (5) 223424342
senary (6) 33223414
septenary (7) 11326504
nonary (9) 1781881
undecimal (11) 62239a
duodecimal (12) 401b6a
tridecimal (13) 28c77a
tetradecimal (14) 1bdd74
pentadecimal (15) 14adb7

As an angle

998,722° = 2,774 × 360° + 82°
82° ≈ 1.431 rad

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹
Egyptian hieroglyphic
𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓏺𓏺
Greek (Milesian)
͵ϡϟηψκβʹ
Chinese
九十九萬八千七百二十二
Chinese (financial)
玖拾玖萬捌仟柒佰貳拾貳
In other modern scripts
Eastern Arabic ٩٩٨٧٢٢ Devanagari ९९८७२२ Bengali ৯৯৮৭২২ Tamil ௯௯௮௭௨௨ Thai ๙๙๘๗๒๒ Tibetan ༩༩༨༧༢༢ Khmer ៩៩៨៧២២ Lao ໙໙໘໗໒໒ Burmese ၉၉၈၇၂၂

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 998722, here are decompositions:

  • 5 + 998717 = 998722
  • 41 + 998681 = 998722
  • 71 + 998651 = 998722
  • 89 + 998633 = 998722
  • 251 + 998471 = 998722
  • 293 + 998429 = 998722
  • 311 + 998411 = 998722
  • 449 + 998273 = 998722

Showing the first eight; more decompositions exist.

Hex color
#0F3D42
RGB(15, 61, 66)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.61.66.

Address
0.15.61.66
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.61.66

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 998,722 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 998722 first appears in π at position 199,822 of the decimal expansion (the 199,822ordinal-suffix:nd 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°.