Live analysis

998,500

998,500 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.).

998,500 (nine hundred ninety-eight thousand five hundred) is an even 6-digit number. It is a composite number with 24 divisors, and factors as 2² × 5³ × 1,997. Its proper divisors sum to 1,183,316, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xF3C64.

Abundant Number Arithmetic Number Decagonal Odious Number Pernicious Number Semiperfect Number

Interestingness

★ ☆ ☆ ☆ ☆

3 notable facts · grade F

998,488 998,489 998,490 998,491 998,492 998,493 998,494 998,495 998,496 998,497 998,498 998,499 998,500 998,501 998,502 998,503 998,504 998,505 998,506 998,507 998,508 998,509 998,510 998,511 998,512

less more

Properties

Parity: Even
Digit count: 6
Digit sum: 31
Digit product: 0
Digital root: 4
Palindrome: No
Bit width: 20 bits
Reversed: 5,899
Square (n²): 997,002,250,000
Cube (n³): 995,506,746,625,000,000
Divisor count: 24
σ(n) — sum of divisors: 2,181,816
φ(n) — Euler's totient: 399,200
Sum of prime factors: 2,016

Primality

Prime factorization: 2 ² × 5 ³ × 1997

Nearest primes: 998,497 (−3) · 998,513 (+13)

Divisors & multiples

All divisors (24)

1 · 2 · 4 · 5 · 10 · 20 · 25 · 50 · 100 · 125 · 250 · 500 · 1997 · 3994 · 7988 · 9985 · 19970 · 39940 · 49925 · 99850 · 199700 · 249625 · 499250 (half) · 998500

Aliquot sum (sum of proper divisors): 1,183,316

Factor pairs (a × b = 998,500)

1 × 998500

2 × 499250

4 × 249625

5 × 199700

10 × 99850

20 × 49925

25 × 39940

50 × 19970

100 × 9985

125 × 7988

250 × 3994

500 × 1997

First multiples

998,500 · 1,997,000 (double) · 2,995,500 · 3,994,000 · 4,992,500 · 5,991,000 · 6,989,500 · 7,988,000 · 8,986,500 · 9,985,000

Sums & aliquot sequence

As a sum of two squares: 240² + 970² = 390² + 920² = 502² + 864² = 632² + 774²

As consecutive integers: 199,698 + 199,699 + 199,700 + 199,701 + 199,702 124,809 + 124,810 + … + 124,816 39,928 + 39,929 + … + 39,952 24,943 + 24,944 + … + 24,982

Aliquot sequence: 998,500 → 1,183,316 → 980,314 → 524,486 → 266,938 → 211,142 → 107,794 → 53,900 → 94,528 → 120,864 → 196,656 → 343,488 → 565,832 → 495,118 → 316,322 → 158,164 → 118,630 — unresolved within range

Continued fraction of √n

√998,500 = [999; (4, 221, 1, 4, 7, 24, 1, 1, 6, 1, 6, 2, 1, 2, 16, 1, 5, 1, 12, 2, 1, 1, 1, 3, …)]

Representations

In words: nine hundred ninety-eight thousand five hundred
Ordinal: 998500th
Binary: 11110011110001100100
Octal: 3636144
Hexadecimal: 0xF3C64
Base64: Dzxk
One's complement: 4,293,968,795 (32-bit)
Scientific notation: 9.985 × 10⁵
As a duration: 998,500 s = 11 days, 13 hours, 21 minutes, 40 seconds

In other bases

ternary (3) 1212201200111

quaternary (4) 3303301210

quinary (5) 223423000

senary (6) 33222404

septenary (7) 11326036

nonary (9) 1781614

undecimal (11) 622208

duodecimal (12) 401a04

tridecimal (13) 28c639

tetradecimal (14) 1bdc56

pentadecimal (15) 14acba

As an angle

998,500° = 2,773 × 360° + 220°

220° ≈ 3.84 rad

Historical numeral systems

Babylonian (base 60): 𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹 𒌋𒌋𒌋𒌋
Egyptian hieroglyphic: 𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢
Greek (Milesian): ͵ϡϟηφʹ
Chinese: 九十九萬八千五百
Chinese (financial): 玖拾玖萬捌仟伍佰

In other modern scripts

Eastern Arabic ٩٩٨٥٠٠ Devanagari ९९८५०० Bengali ৯৯৮৫০০ Tamil ௯௯௮௫௦௦ Thai ๙๙๘๕๐๐ Tibetan ༩༩༨༥༠༠ Khmer ៩៩៨៥០០ Lao ໙໙໘໕໐໐ Burmese ၉၉၈၅၀၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 998500, here are decompositions:

3 + 998497 = 998500
29 + 998471 = 998500
71 + 998429 = 998500
89 + 998411 = 998500
101 + 998399 = 998500
227 + 998273 = 998500
257 + 998243 = 998500
263 + 998237 = 998500

Showing the first eight; more decompositions exist.

Hex color

#0F3C64

RGB(15, 60, 100)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.60.100.

Address: 0.15.60.100
Class: reserved
IPv4-mapped IPv6: ::ffff:0.15.60.100

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 998,500 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 US998,500 on Google Patents ↗ Look up on USPTO ↗