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988,380

988,380 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.).

988,380 (nine hundred eighty-eight thousand three hundred eighty) is an even 6-digit number. It is a composite number with 108 divisors, and factors as 2² × 3² × 5 × 17² × 19. Its proper divisors sum to 2,364,060, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xF14DC.

Abundant Number Cube-Free Gapful Number Harshad / Niven Odious Number Pernicious Number Practical Number Weird Number

Interestingness

Properties

Parity
Even
Digit count
6
Digit sum
36
Digit product
0
Digital root
9
Palindrome
No
Bit width
20 bits
Reversed
83,889
Square (n²)
976,895,024,400
Cube (n³)
965,543,504,216,472,000
Divisor count
108
σ(n) — sum of divisors
3,352,440
φ(n) — Euler's totient
235,008
Sum of prime factors
68

Primality

Prime factorization: 2 2 × 3 2 × 5 × 17 2 × 19

Nearest primes: 988,367 (−13) · 988,409 (+29)

Divisors & multiples

All divisors (108)
1 · 2 · 3 · 4 · 5 · 6 · 9 · 10 · 12 · 15 · 17 · 18 · 19 · 20 · 30 · 34 · 36 · 38 · 45 · 51 · 57 · 60 · 68 · 76 · 85 · 90 · 95 · 102 · 114 · 153 · 170 · 171 · 180 · 190 · 204 · 228 · 255 · 285 · 289 · 306 · 323 · 340 · 342 · 380 · 510 · 570 · 578 · 612 · 646 · 684 · 765 · 855 · 867 · 969 · 1020 · 1140 · 1156 · 1292 · 1445 · 1530 · 1615 · 1710 · 1734 · 1938 · 2601 · 2890 · 2907 · 3060 · 3230 · 3420 · 3468 · 3876 · 4335 · 4845 · 5202 · 5491 · 5780 · 5814 · 6460 · 8670 · 9690 · 10404 · 10982 · 11628 · 13005 · 14535 · 16473 · 17340 · 19380 · 21964 · 26010 · 27455 · 29070 · 32946 · 49419 · 52020 · 54910 · 58140 · 65892 · 82365 · 98838 · 109820 · 164730 · 197676 · 247095 · 329460 · 494190 (half) · 988380
Aliquot sum (sum of proper divisors): 2,364,060
Factor pairs (a × b = 988,380)
1 × 988380
2 × 494190
3 × 329460
4 × 247095
5 × 197676
6 × 164730
9 × 109820
10 × 98838
12 × 82365
15 × 65892
17 × 58140
18 × 54910
19 × 52020
20 × 49419
30 × 32946
34 × 29070
36 × 27455
38 × 26010
45 × 21964
51 × 19380
57 × 17340
60 × 16473
68 × 14535
76 × 13005
85 × 11628
90 × 10982
95 × 10404
102 × 9690
114 × 8670
153 × 6460
170 × 5814
171 × 5780
180 × 5491
190 × 5202
204 × 4845
228 × 4335
255 × 3876
285 × 3468
289 × 3420
306 × 3230
323 × 3060
340 × 2907
342 × 2890
380 × 2601
510 × 1938
570 × 1734
578 × 1710
612 × 1615
646 × 1530
684 × 1445
765 × 1292
855 × 1156
867 × 1140
969 × 1020
First multiples
988,380 · 1,976,760 (double) · 2,965,140 · 3,953,520 · 4,941,900 · 5,930,280 · 6,918,660 · 7,907,040 · 8,895,420 · 9,883,800

Sums & aliquot sequence

As consecutive integers: 329,459 + 329,460 + 329,461 197,674 + 197,675 + 197,676 + 197,677 + 197,678 123,544 + 123,545 + … + 123,551 109,816 + 109,817 + … + 109,824
Aliquot sequence: 988,380 2,364,060 4,642,548 6,344,652 8,521,780 9,374,000 14,032,240 18,592,904 19,438,216 24,409,784 27,897,016 35,808,584 40,924,216 39,992,264 47,468,536 46,995,464 41,795,656 — unresolved within range

Continued fraction of √n

√988,380 = [994; (5, 1, 3, 1, 1, 6, 3, 9, 1, 4, 1, 3, 1, 6, 11, 2, 12, 2, 1, 6, 4, 1, 7, 1, …)]

Representations

In words
nine hundred eighty-eight thousand three hundred eighty
Ordinal
988380th
Binary
11110001010011011100
Octal
3612334
Hexadecimal
0xF14DC
Base64
DxTc
One's complement
4,293,978,915 (32-bit)
Scientific notation
9.8838 × 10⁵
As a duration
988,380 s = 11 days, 10 hours, 33 minutes
In other bases
ternary (3) 1212012210200
quaternary (4) 3301103130
quinary (5) 223112010
senary (6) 33103500
septenary (7) 11254401
nonary (9) 1765720
undecimal (11) 615648
duodecimal (12) 3b7b90
tridecimal (13) 287b53
tetradecimal (14) 1ba2a8
pentadecimal (15) 147cc0

As an angle

988,380° = 2,745 × 360° + 180°
180° ≈ 3.142 rad
Compass bearing: S (south)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹 ·
Egyptian hieroglyphic
𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆
Greek (Milesian)
͵ϡπητπʹ
Chinese
九十八萬八千三百八十
Chinese (financial)
玖拾捌萬捌仟參佰捌拾
In other modern scripts
Eastern Arabic ٩٨٨٣٨٠ Devanagari ९८८३८० Bengali ৯৮৮৩৮০ Tamil ௯௮௮௩௮௦ Thai ๙๘๘๓๘๐ Tibetan ༩༨༨༣༨༠ Khmer ៩៨៨៣៨០ Lao ໙໘໘໓໘໐ Burmese ၉၈၈၃၈၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 988380, here are decompositions:

  • 13 + 988367 = 988380
  • 23 + 988357 = 988380
  • 37 + 988343 = 988380
  • 59 + 988321 = 988380
  • 61 + 988319 = 988380
  • 67 + 988313 = 988380
  • 83 + 988297 = 988380
  • 101 + 988279 = 988380

Showing the first eight; more decompositions exist.

Hex color
#0F14DC
RGB(15, 20, 220)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.20.220.

Address
0.15.20.220
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.20.220

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 988,380 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 988380 first appears in π at position 973,182 of the decimal expansion (the 973,182ordinal-suffix:nd 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°.