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981,088

981,088 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.).

981,088 (nine hundred eighty-one thousand eighty-eight) is an even 6-digit number. It is a composite number with 48 divisors, and factors as 2⁵ × 23 × 31 × 43. Its proper divisors sum to 1,147,808, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xEF860.

Abundant Number Arithmetic Number Evil Number Flippable Practical Number Recamán's Sequence Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
6
Digit sum
34
Digit product
0
Digital root
7
Palindrome
No
Bit width
20 bits
Reversed
880,189
Flips to (rotate 180°)
880,186
Recamán's sequence
a(324,235) = 981,088
Square (n²)
962,533,663,744
Cube (n³)
944,330,227,095,273,472
Divisor count
48
σ(n) — sum of divisors
2,128,896
φ(n) — Euler's totient
443,520
Sum of prime factors
107

Primality

Prime factorization: 2 5 × 23 × 31 × 43

Nearest primes: 981,077 (−11) · 981,091 (+3)

Divisors & multiples

All divisors (48)
1 · 2 · 4 · 8 · 16 · 23 · 31 · 32 · 43 · 46 · 62 · 86 · 92 · 124 · 172 · 184 · 248 · 344 · 368 · 496 · 688 · 713 · 736 · 989 · 992 · 1333 · 1376 · 1426 · 1978 · 2666 · 2852 · 3956 · 5332 · 5704 · 7912 · 10664 · 11408 · 15824 · 21328 · 22816 · 30659 · 31648 · 42656 · 61318 · 122636 · 245272 · 490544 (half) · 981088
Aliquot sum (sum of proper divisors): 1,147,808
Factor pairs (a × b = 981,088)
1 × 981088
2 × 490544
4 × 245272
8 × 122636
16 × 61318
23 × 42656
31 × 31648
32 × 30659
43 × 22816
46 × 21328
62 × 15824
86 × 11408
92 × 10664
124 × 7912
172 × 5704
184 × 5332
248 × 3956
344 × 2852
368 × 2666
496 × 1978
688 × 1426
713 × 1376
736 × 1333
989 × 992
First multiples
981,088 · 1,962,176 (double) · 2,943,264 · 3,924,352 · 4,905,440 · 5,886,528 · 6,867,616 · 7,848,704 · 8,829,792 · 9,810,880

Sums & aliquot sequence

As consecutive integers: 42,645 + 42,646 + … + 42,667 31,633 + 31,634 + … + 31,663 22,795 + 22,796 + … + 22,837 15,298 + 15,299 + … + 15,361
Aliquot sequence: 981,088 1,147,808 1,112,002 629,822 347,578 330,950 284,710 236,282 143,110 138,122 69,064 63,236 47,434 25,754 13,606 6,806 3,778 — unresolved within range

Continued fraction of √n

√981,088 = [990; (2, 219, 1, 1, 1, 1, 3, 24, 5, 1, 1, 2, 2, 1, 1, 2, 7, 1, 1, 1, 2, 1, 2, 3, …)]

Representations

In words
nine hundred eighty-one thousand eighty-eight
Ordinal
981088th
Binary
11101111100001100000
Octal
3574140
Hexadecimal
0xEF860
Base64
Dvhg
One's complement
4,293,986,207 (32-bit)
Scientific notation
9.81088 × 10⁵
As a duration
981,088 s = 11 days, 8 hours, 31 minutes, 28 seconds
In other bases
ternary (3) 1211211210121
quaternary (4) 3233201200
quinary (5) 222343323
senary (6) 33010024
septenary (7) 11224213
nonary (9) 1754717
undecimal (11) 610119
duodecimal (12) 3b3914
tridecimal (13) 284734
tetradecimal (14) 1b777a
pentadecimal (15) 145a5d

As an angle

981,088° = 2,725 × 360° + 88°
88° ≈ 1.536 rad
Compass bearing: E (east)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹 𒌋𒌋𒌋𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian)
͵ϡπαπηʹ
Chinese
九十八萬一千零八十八
Chinese (financial)
玖拾捌萬壹仟零捌拾捌
In other modern scripts
Eastern Arabic ٩٨١٠٨٨ Devanagari ९८१०८८ Bengali ৯৮১০৮৮ Tamil ௯௮௧௦௮௮ Thai ๙๘๑๐๘๘ Tibetan ༩༨༡༠༨༨ Khmer ៩៨១០៨៨ Lao ໙໘໑໐໘໘ Burmese ၉၈၁၀၈၈

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 981088, here are decompositions:

  • 11 + 981077 = 981088
  • 71 + 981017 = 981088
  • 89 + 980999 = 981088
  • 131 + 980957 = 981088
  • 167 + 980921 = 981088
  • 179 + 980909 = 981088
  • 191 + 980897 = 981088
  • 257 + 980831 = 981088

Showing the first eight; more decompositions exist.

Hex color
#0EF860
RGB(14, 248, 96)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.14.248.96.

Address
0.14.248.96
Class
reserved
IPv4-mapped IPv6
::ffff:0.14.248.96

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 981,088 and was likely granted around 1910.

Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.

Related reading

  • Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.