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988,620

988,620 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.).

988,620 (nine hundred eighty-eight thousand six hundred twenty) is an even 6-digit number. It is a composite number with 24 divisors, and factors as 2² × 3 × 5 × 16,477. Its proper divisors sum to 1,779,684, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xF15CC.

Abundant Number Arithmetic Number Cube-Free Odious Number Pernicious Number Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
6
Digit sum
33
Digit product
0
Digital root
6
Palindrome
No
Bit width
20 bits
Reversed
26,889
Square (n²)
977,369,504,400
Cube (n³)
966,247,039,439,928,000
Divisor count
24
σ(n) — sum of divisors
2,768,304
φ(n) — Euler's totient
263,616
Sum of prime factors
16,489

Primality

Prime factorization: 2 2 × 3 × 5 × 16477

Nearest primes: 988,607 (−13) · 988,643 (+23)

Divisors & multiples

All divisors (24)
1 · 2 · 3 · 4 · 5 · 6 · 10 · 12 · 15 · 20 · 30 · 60 · 16477 · 32954 · 49431 · 65908 · 82385 · 98862 · 164770 · 197724 · 247155 · 329540 · 494310 (half) · 988620
Aliquot sum (sum of proper divisors): 1,779,684
Factor pairs (a × b = 988,620)
1 × 988620
2 × 494310
3 × 329540
4 × 247155
5 × 197724
6 × 164770
10 × 98862
12 × 82385
15 × 65908
20 × 49431
30 × 32954
60 × 16477
First multiples
988,620 · 1,977,240 (double) · 2,965,860 · 3,954,480 · 4,943,100 · 5,931,720 · 6,920,340 · 7,908,960 · 8,897,580 · 9,886,200

Sums & aliquot sequence

As consecutive integers: 329,539 + 329,540 + 329,541 197,722 + 197,723 + 197,724 + 197,725 + 197,726 123,574 + 123,575 + … + 123,581 65,901 + 65,902 + … + 65,915
Aliquot sequence: 988,620 1,779,684 2,470,716 3,935,124 6,073,056 13,740,192 30,329,568 57,591,720 129,582,540 263,485,044 407,030,256 735,039,504 1,325,633,292 2,027,432,788 1,520,574,598 886,651,982 459,350,074 — unresolved within range

Continued fraction of √n

√988,620 = [994; (3, 2, 2, 8, 3, 1, 2, 11, 2, 2, 9, 2, 1, 9, 4, 1, 1, 1, 3, 1, 32, 1, 11, 1, …)]

Representations

In words
nine hundred eighty-eight thousand six hundred twenty
Ordinal
988620th
Binary
11110001010111001100
Octal
3612714
Hexadecimal
0xF15CC
Base64
DxXM
One's complement
4,293,978,675 (32-bit)
Scientific notation
9.8862 × 10⁵
As a duration
988,620 s = 11 days, 10 hours, 37 minutes
In other bases
ternary (3) 1212020010120
quaternary (4) 3301113030
quinary (5) 223113440
senary (6) 33104540
septenary (7) 11255163
nonary (9) 1766116
undecimal (11) 615846
duodecimal (12) 3b8150
tridecimal (13) 287ca9
tetradecimal (14) 1ba3da
pentadecimal (15) 147dd0

As an angle

988,620° = 2,746 × 360° + 60°
60° ≈ 1.047 rad
Compass bearing: ENE (east-northeast)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 ·
Egyptian hieroglyphic
𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆
Greek (Milesian)
͵ϡπηχκʹ
Chinese
九十八萬八千六百二十
Chinese (financial)
玖拾捌萬捌仟陸佰貳拾
In other modern scripts
Eastern Arabic ٩٨٨٦٢٠ Devanagari ९८८६२० Bengali ৯৮৮৬২০ Tamil ௯௮௮௬௨௦ Thai ๙๘๘๖๒๐ Tibetan ༩༨༨༦༢༠ Khmer ៩៨៨៦២០ Lao ໙໘໘໖໒໐ Burmese ၉၈၈၆၂၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 988620, here are decompositions:

  • 13 + 988607 = 988620
  • 29 + 988591 = 988620
  • 37 + 988583 = 988620
  • 41 + 988579 = 988620
  • 43 + 988577 = 988620
  • 71 + 988549 = 988620
  • 79 + 988541 = 988620
  • 109 + 988511 = 988620

Showing the first eight; more decompositions exist.

Hex color
#0F15CC
RGB(15, 21, 204)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.21.204.

Address
0.15.21.204
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.21.204

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 988,620 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 988620 first appears in π at position 385,501 of the decimal expansion (the 385,501ordinal-suffix:st 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°.