Live analysis

998,840

998,840 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.).

998,840 (nine hundred ninety-eight thousand eight hundred forty) is an even 6-digit number. It is a composite number with 16 divisors, and factors as 2³ × 5 × 24,971. Its proper divisors sum to 1,248,640, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xF3DB8.

Abundant Number Odious Number Pernicious Number Semiperfect Number

Interestingness

★ ☆ ☆ ☆ ☆

1 notable fact · grade F

998,828 998,829 998,830 998,831 998,832 998,833 998,834 998,835 998,836 998,837 998,838 998,839 998,840 998,841 998,842 998,843 998,844 998,845 998,846 998,847 998,848 998,849 998,850 998,851 998,852

less more

Properties

Parity: Even
Digit count: 6
Digit sum: 38
Digit product: 0
Digital root: 2
Palindrome: No
Bit width: 20 bits
Reversed: 48,899
Square (n²): 997,681,345,600
Cube (n³): 996,524,035,239,104,000
Divisor count: 16
σ(n) — sum of divisors: 2,247,480
φ(n) — Euler's totient: 399,520
Sum of prime factors: 24,982

Primality

Prime factorization: 2 ³ × 5 × 24971

Nearest primes: 998,839 (−1) · 998,843 (+3)

Divisors & multiples

All divisors (16)

1 · 2 · 4 · 5 · 8 · 10 · 20 · 40 · 24971 · 49942 · 99884 · 124855 · 199768 · 249710 · 499420 (half) · 998840

Aliquot sum (sum of proper divisors): 1,248,640

Factor pairs (a × b = 998,840)

1 × 998840

2 × 499420

4 × 249710

5 × 199768

8 × 124855

10 × 99884

20 × 49942

40 × 24971

First multiples

998,840 · 1,997,680 (double) · 2,996,520 · 3,995,360 · 4,994,200 · 5,993,040 · 6,991,880 · 7,990,720 · 8,989,560 · 9,988,400

Sums & aliquot sequence

As consecutive integers: 199,766 + 199,767 + 199,768 + 199,769 + 199,770 62,420 + 62,421 + … + 62,435 12,446 + 12,447 + … + 12,525

Aliquot sequence: 998,840 → 1,248,640 → 1,737,920 → 2,401,264 → 2,278,992 → 3,692,848 → 3,491,960 → 4,365,040 → 5,783,864 → 5,060,896 → 5,020,364 → 4,172,596 → 3,179,504 → 2,980,816 → 2,794,546 → 1,640,654 → 886,954 — unresolved within range

Continued fraction of √n

√998,840 = [999; (2, 2, 1, 1, 1, 1, 1, 1, 1, 3, 9, 48, 1, 1, 1, 4, 3, 8, 6, 3, 3, 1, 5, 1, …)]

Representations

In words: nine hundred ninety-eight thousand eight hundred forty
Ordinal: 998840th
Binary: 11110011110110111000
Octal: 3636670
Hexadecimal: 0xF3DB8
Base64: Dz24
One's complement: 4,293,968,455 (32-bit)
Scientific notation: 9.9884 × 10⁵
As a duration: 998,840 s = 11 days, 13 hours, 27 minutes, 20 seconds

In other bases

ternary (3) 1212202011002

quaternary (4) 3303312320

quinary (5) 223430330

senary (6) 33224132

septenary (7) 11330033

nonary (9) 1782132

undecimal (11) 622497

duodecimal (12) 402048

tridecimal (13) 28c83b

tetradecimal (14) 1c001a

pentadecimal (15) 14ae45

As an angle

998,840° = 2,774 × 360° + 200°

200° ≈ 3.491 rad

Historical numeral systems

Babylonian (base 60): 𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋
Egyptian hieroglyphic: 𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆
Greek (Milesian): ͵ϡϟηωμʹ
Chinese: 九十九萬八千八百四十
Chinese (financial): 玖拾玖萬捌仟捌佰肆拾

In other modern scripts

Eastern Arabic ٩٩٨٨٤٠ Devanagari ९९८८४० Bengali ৯৯৮৮৪০ Tamil ௯௯௮௮௪௦ Thai ๙๙๘๘๔๐ Tibetan ༩༩༨༨༤༠ Khmer ៩៩៨៨៤០ Lao ໙໙໘໘໔໐ Burmese ၉၉၈၈၄၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 998840, here are decompositions:

61 + 998779 = 998840
97 + 998743 = 998840
103 + 998737 = 998840
151 + 998689 = 998840
211 + 998629 = 998840
223 + 998617 = 998840
313 + 998527 = 998840
397 + 998443 = 998840

Showing the first eight; more decompositions exist.

Hex color

#0F3DB8

RGB(15, 61, 184)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.61.184.

Address: 0.15.61.184
Class: reserved
IPv4-mapped IPv6: ::ffff:0.15.61.184

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 998,840 and was likely granted around 1911.

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

Look up US998,840 on Google Patents ↗ Look up on USPTO ↗