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998,658

998,658 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.).

998,658 (nine hundred ninety-eight thousand six hundred fifty-eight) is an even 6-digit number. It is a composite number with 24 divisors, and factors as 2 × 3² × 109 × 509. Its proper divisors sum to 1,189,242, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xF3D02.

Abundant Number Cube-Free Evil Number Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
6
Digit sum
45
Digit product
155,520
Digital root
9
Palindrome
No
Bit width
20 bits
Reversed
856,899
Square (n²)
997,317,800,964
Cube (n³)
995,979,400,475,106,312
Divisor count
24
σ(n) — sum of divisors
2,187,900
φ(n) — Euler's totient
329,184
Sum of prime factors
626

Primality

Prime factorization: 2 × 3 2 × 109 × 509

Nearest primes: 998,653 (−5) · 998,681 (+23)

Divisors & multiples

All divisors (24)
1 · 2 · 3 · 6 · 9 · 18 · 109 · 218 · 327 · 509 · 654 · 981 · 1018 · 1527 · 1962 · 3054 · 4581 · 9162 · 55481 · 110962 · 166443 · 332886 · 499329 (half) · 998658
Aliquot sum (sum of proper divisors): 1,189,242
Factor pairs (a × b = 998,658)
1 × 998658
2 × 499329
3 × 332886
6 × 166443
9 × 110962
18 × 55481
109 × 9162
218 × 4581
327 × 3054
509 × 1962
654 × 1527
981 × 1018
First multiples
998,658 · 1,997,316 (double) · 2,995,974 · 3,994,632 · 4,993,290 · 5,991,948 · 6,990,606 · 7,989,264 · 8,987,922 · 9,986,580

Sums & aliquot sequence

As a sum of two squares: 267² + 963² = 657² + 753²
As consecutive integers: 332,885 + 332,886 + 332,887 249,663 + 249,664 + 249,665 + 249,666 110,958 + 110,959 + … + 110,966 83,216 + 83,217 + … + 83,227
Aliquot sequence: 998,658 1,189,242 1,483,974 1,813,866 2,027,478 2,041,818 2,100,198 2,100,210 3,781,902 3,943,410 5,520,846 5,901,954 5,901,966 9,193,842 13,786,830 24,171,714 37,155,006 — unresolved within range

Continued fraction of √n

√998,658 = [999; (3, 24, 24, 1, 1, 1, 2, 1, 2, 2, 1, 3, 5, 2, 1, 1, 4, 3, 6, 1, 4, 21, 17, 1, …)]

Representations

In words
nine hundred ninety-eight thousand six hundred fifty-eight
Ordinal
998658th
Binary
11110011110100000010
Octal
3636402
Hexadecimal
0xF3D02
Base64
Dz0C
One's complement
4,293,968,637 (32-bit)
Scientific notation
9.98658 × 10⁵
As a duration
998,658 s = 11 days, 13 hours, 24 minutes, 18 seconds
In other bases
ternary (3) 1212201220100
quaternary (4) 3303310002
quinary (5) 223424113
senary (6) 33223230
septenary (7) 11326353
nonary (9) 1781810
undecimal (11) 622341
duodecimal (12) 401b16
tridecimal (13) 28c72b
tetradecimal (14) 1bdd2a
pentadecimal (15) 14ad73

As an angle

998,658° = 2,774 × 360° + 18°
18° ≈ 0.314 rad

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian)
͵ϡϟηχνηʹ
Chinese
九十九萬八千六百五十八
Chinese (financial)
玖拾玖萬捌仟陸佰伍拾捌
In other modern scripts
Eastern Arabic ٩٩٨٦٥٨ Devanagari ९९८६५८ Bengali ৯৯৮৬৫৮ Tamil ௯௯௮௬௫௮ Thai ๙๙๘๖๕๘ Tibetan ༩༩༨༦༥༨ Khmer ៩៩៨៦៥៨ Lao ໙໙໘໖໕໘ Burmese ၉၉၈၆၅၈

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 998658, here are decompositions:

  • 5 + 998653 = 998658
  • 7 + 998651 = 998658
  • 29 + 998629 = 998658
  • 41 + 998617 = 998658
  • 97 + 998561 = 998658
  • 107 + 998551 = 998658
  • 131 + 998527 = 998658
  • 229 + 998429 = 998658

Showing the first eight; more decompositions exist.

Hex color
#0F3D02
RGB(15, 61, 2)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.61.2.

Address
0.15.61.2
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.61.2

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 998,658 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 998658 first appears in π at position 589,743 of the decimal expansion (the 589,743ordinal-suffix:rd 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°.