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998,656

998,656 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.).

998,656 (nine hundred ninety-eight thousand six hundred fifty-six) is an even 6-digit number. It is a composite number with 36 divisors, and factors as 2⁸ × 47 × 83. Its proper divisors sum to 1,061,696, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xF3D00.

Abundant Number Arithmetic Number Odious Number Practical Number Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
6
Digit sum
43
Digit product
116,640
Digital root
7
Palindrome
No
Bit width
20 bits
Reversed
656,899
Square (n²)
997,313,806,336
Cube (n³)
995,973,416,580,284,416
Divisor count
36
σ(n) — sum of divisors
2,060,352
φ(n) — Euler's totient
482,816
Sum of prime factors
146

Primality

Prime factorization: 2 8 × 47 × 83

Nearest primes: 998,653 (−3) · 998,681 (+25)

Divisors & multiples

All divisors (36)
1 · 2 · 4 · 8 · 16 · 32 · 47 · 64 · 83 · 94 · 128 · 166 · 188 · 256 · 332 · 376 · 664 · 752 · 1328 · 1504 · 2656 · 3008 · 3901 · 5312 · 6016 · 7802 · 10624 · 12032 · 15604 · 21248 · 31208 · 62416 · 124832 · 249664 · 499328 (half) · 998656
Aliquot sum (sum of proper divisors): 1,061,696
Factor pairs (a × b = 998,656)
1 × 998656
2 × 499328
4 × 249664
8 × 124832
16 × 62416
32 × 31208
47 × 21248
64 × 15604
83 × 12032
94 × 10624
128 × 7802
166 × 6016
188 × 5312
256 × 3901
332 × 3008
376 × 2656
664 × 1504
752 × 1328
First multiples
998,656 · 1,997,312 (double) · 2,995,968 · 3,994,624 · 4,993,280 · 5,991,936 · 6,990,592 · 7,989,248 · 8,987,904 · 9,986,560

Sums & aliquot sequence

As consecutive integers: 21,225 + 21,226 + … + 21,271 11,991 + 11,992 + … + 12,073 1,695 + 1,696 + … + 2,206
Aliquot sequence: 998,656 1,061,696 1,091,716 859,772 644,836 514,392 771,648 1,270,512 2,613,168 5,243,472 10,565,412 19,239,132 31,870,500 60,940,764 96,385,860 211,383,420 399,588,228 — unresolved within range

Continued fraction of √n

√998,656 = [999; (3, 19, 1, 1, 1, 7, 1, 1, 1, 2, 1, 1, 5, 8, 1, 2, 2, 1, 2, 55, 6, 1, 3, 8, …)]

Representations

In words
nine hundred ninety-eight thousand six hundred fifty-six
Ordinal
998656th
Binary
11110011110100000000
Octal
3636400
Hexadecimal
0xF3D00
Base64
Dz0A
One's complement
4,293,968,639 (32-bit)
Scientific notation
9.98656 × 10⁵
As a duration
998,656 s = 11 days, 13 hours, 24 minutes, 16 seconds
In other bases
ternary (3) 1212201220021
quaternary (4) 3303310000
quinary (5) 223424111
senary (6) 33223224
septenary (7) 11326351
nonary (9) 1781807
undecimal (11) 62233a
duodecimal (12) 401b14
tridecimal (13) 28c729
tetradecimal (14) 1bdd28
pentadecimal (15) 14ad71

As an angle

998,656° = 2,774 × 360° + 16°
16° ≈ 0.279 rad

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian)
͵ϡϟηχνϛʹ
Chinese
九十九萬八千六百五十六
Chinese (financial)
玖拾玖萬捌仟陸佰伍拾陸
In other modern scripts
Eastern Arabic ٩٩٨٦٥٦ Devanagari ९९८६५६ Bengali ৯৯৮৬৫৬ Tamil ௯௯௮௬௫௬ Thai ๙๙๘๖๕๖ Tibetan ༩༩༨༦༥༦ Khmer ៩៩៨៦៥៦ Lao ໙໙໘໖໕໖ Burmese ၉၉၈၆၅၆

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 998656, here are decompositions:

  • 3 + 998653 = 998656
  • 5 + 998651 = 998656
  • 23 + 998633 = 998656
  • 227 + 998429 = 998656
  • 233 + 998423 = 998656
  • 257 + 998399 = 998656
  • 383 + 998273 = 998656
  • 419 + 998237 = 998656

Showing the first eight; more decompositions exist.

Hex color
#0F3D00
RGB(15, 61, 0)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.61.0.

Address
0.15.61.0
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.61.0

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 998,656 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 998656 first appears in π at position 253,558 of the decimal expansion (the 253,558ordinal-suffix:th 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°.