Live analysis

1,001,998

1,001,998 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.).

1,001,998 (one million one thousand nine hundred ninety-eight) is an even 7-digit number. It is a composite number with 8 divisors, and factors as 2 × 73 × 6,863. Written other ways, in hexadecimal, 0xF4A0E.

Arithmetic Number Cube-Free Deficient Number Evil Number Flippable Sphenic Number Squarefree

Interestingness

★ ★ ★ ☆ ☆

5 notable facts · grade C

1,001,986 1,001,987 1,001,988 1,001,989 1,001,990 1,001,991 1,001,992 1,001,993 1,001,994 1,001,995 1,001,996 1,001,997 1,001,998 1,001,999 1,002,000 1,002,001 1,002,002 1,002,003 1,002,004 1,002,005 1,002,006 1,002,007 1,002,008 1,002,009 1,002,010

less more

Properties

Parity: Even
Digit count: 7
Digit sum: 28
Digit product: 0
Digital root: 1
Palindrome: No
Bit width: 20 bits
Reversed: 8,991,001
Flips to (rotate 180°): 8,661,001
Square (n²): 1,003,999,992,004
Cube (n³): 1,006,005,983,988,023,992
Divisor count: 8
σ(n) — sum of divisors: 1,523,808
φ(n) — Euler's totient: 494,064
Sum of prime factors: 6,938

Primality

Prime factorization: 2 × 73 × 6863

Nearest primes: 1,001,989 (−9) · 1,002,017 (+19)

Divisors & multiples

All divisors (8)

1 · 2 · 73 · 146 · 6863 · 13726 · 500999 (half) · 1001998

Aliquot sum (sum of proper divisors): 521,810

Factor pairs (a × b = 1,001,998)

1 × 1001998

2 × 500999

73 × 13726

146 × 6863

First multiples

1,001,998 · 2,003,996 (double) · 3,005,994 · 4,007,992 · 5,009,990 · 6,011,988 · 7,013,986 · 8,015,984 · 9,017,982 · 10,019,980

Sums & aliquot sequence

As consecutive integers: 250,498 + 250,499 + 250,500 + 250,501 13,690 + 13,691 + … + 13,762 3,286 + 3,287 + … + 3,577

Aliquot sequence: 1,001,998 → 521,810 → 417,466 → 298,214 → 255,826 → 127,916 → 98,716 → 92,804 → 69,610 → 55,706 → 44,518 → 22,262 → 11,134 → 6,506 → 3,256 → 3,584 → 4,600 — unresolved within range

Continued fraction of √n

√1,001,998 = [1000; (1, 666, 3, 222, 9, 74, 27, 24, 1, 2, 8, 1, 2, 7, 1, 8, 2, 1, 8, 2, 1, 1, 1, 2, …)]

Representations

In words: one million one thousand nine hundred ninety-eight
Ordinal: 1001998th
Binary: 11110100101000001110
Octal: 3645016
Hexadecimal: 0xF4A0E
Base64: D0oO
One's complement: 4,293,965,297 (32-bit)
Scientific notation: 1.001998 × 10⁶
As a duration: 1,001,998 s = 11 days, 14 hours, 19 minutes, 58 seconds

In other bases

ternary (3) 1212220111001

quaternary (4) 3310220032

quinary (5) 224030443

senary (6) 33250514

septenary (7) 11342164

nonary (9) 1786431

undecimal (11) 6248a8

duodecimal (12) 403a3a

tridecimal (13) 2910ca

tetradecimal (14) 1c1234

pentadecimal (15) 14bd4d

As an angle

1,001,998° = 2,783 × 360° + 118°

118° ≈ 2.059 rad

Compass bearing: ESE (east-southeast)

Why does a circle have 360 degrees? →

Historical numeral systems

Babylonian (base 60): 𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic: 𓁨𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Chinese: 一百萬一千九百九十八
Chinese (financial): 壹佰萬壹仟玖佰玖拾捌

In other modern scripts

Eastern Arabic ١٠٠١٩٩٨ Devanagari १००१९९८ Bengali ১০০১৯৯৮ Tamil ௧௦௦௧௯௯௮ Thai ๑๐๐๑๙๙๘ Tibetan ༡༠༠༡༩༩༨ Khmer ១០០១៩៩៨ Lao ໑໐໐໑໙໙໘ Burmese ၁၀၀၁၉၉၈

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1001998, here are decompositions:

17 + 1001981 = 1001998
167 + 1001831 = 1001998
191 + 1001807 = 1001998
197 + 1001801 = 1001998
311 + 1001687 = 1001998
359 + 1001639 = 1001998
449 + 1001549 = 1001998
467 + 1001531 = 1001998

Showing the first eight; more decompositions exist.

Hex color

#0F4A0E

RGB(15, 74, 14)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.74.14.

Address: 0.15.74.14
Class: reserved
IPv4-mapped IPv6: ::ffff:0.15.74.14

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 1,001,998 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 US1,001,998 on Google Patents ↗ Look up on USPTO ↗