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1,015,980

1,015,980 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.).

1,015,980 (one million fifteen thousand nine hundred eighty) is an even 7-digit number. It is a composite number with 96 divisors, and factors as 2² × 3 × 5 × 7 × 41 × 59. Its proper divisors sum to 2,370,900, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xF80AC.

Abundant Number Arithmetic Number Cube-Free Gapful Number Odious Number Practical Number Recamán's Sequence Self Number Weird Number

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
24
Digit product
0
Digital root
6
Palindrome
No
Bit width
20 bits
Reversed
895,101
Recamán's sequence
a(366,031) = 1,015,980
Square (n²)
1,032,215,360,400
Cube (n³)
1,048,710,161,859,192,000
Divisor count
96
σ(n) — sum of divisors
3,386,880
φ(n) — Euler's totient
222,720
Sum of prime factors
119

Primality

Prime factorization: 2 2 × 3 × 5 × 7 × 41 × 59

Nearest primes: 1,015,967 (−13) · 1,015,981 (+1)

Divisors & multiples

All divisors (96)
1 · 2 · 3 · 4 · 5 · 6 · 7 · 10 · 12 · 14 · 15 · 20 · 21 · 28 · 30 · 35 · 41 · 42 · 59 · 60 · 70 · 82 · 84 · 105 · 118 · 123 · 140 · 164 · 177 · 205 · 210 · 236 · 246 · 287 · 295 · 354 · 410 · 413 · 420 · 492 · 574 · 590 · 615 · 708 · 820 · 826 · 861 · 885 · 1148 · 1180 · 1230 · 1239 · 1435 · 1652 · 1722 · 1770 · 2065 · 2419 · 2460 · 2478 · 2870 · 3444 · 3540 · 4130 · 4305 · 4838 · 4956 · 5740 · 6195 · 7257 · 8260 · 8610 · 9676 · 12095 · 12390 · 14514 · 16933 · 17220 · 24190 · 24780 · 29028 · 33866 · 36285 · 48380 · 50799 · 67732 · 72570 · 84665 · 101598 · 145140 · 169330 · 203196 · 253995 · 338660 · 507990 (half) · 1015980
Aliquot sum (sum of proper divisors): 2,370,900
Factor pairs (a × b = 1,015,980)
1 × 1015980
2 × 507990
3 × 338660
4 × 253995
5 × 203196
6 × 169330
7 × 145140
10 × 101598
12 × 84665
14 × 72570
15 × 67732
20 × 50799
21 × 48380
28 × 36285
30 × 33866
35 × 29028
41 × 24780
42 × 24190
59 × 17220
60 × 16933
70 × 14514
82 × 12390
84 × 12095
105 × 9676
118 × 8610
123 × 8260
140 × 7257
164 × 6195
177 × 5740
205 × 4956
210 × 4838
236 × 4305
246 × 4130
287 × 3540
295 × 3444
354 × 2870
410 × 2478
413 × 2460
420 × 2419
492 × 2065
574 × 1770
590 × 1722
615 × 1652
708 × 1435
820 × 1239
826 × 1230
861 × 1180
885 × 1148
First multiples
1,015,980 · 2,031,960 (double) · 3,047,940 · 4,063,920 · 5,079,900 · 6,095,880 · 7,111,860 · 8,127,840 · 9,143,820 · 10,159,800

Sums & aliquot sequence

As consecutive integers: 338,659 + 338,660 + 338,661 203,194 + 203,195 + 203,196 + 203,197 + 203,198 145,137 + 145,138 + … + 145,143 126,994 + 126,995 + … + 127,001
Aliquot sequence: 1,015,980 2,370,900 5,475,820 7,666,484 7,666,540 11,064,116 11,064,172 11,371,444 11,371,500 31,897,908 62,616,652 66,658,228 79,482,704 100,257,466 64,467,374 32,304,346 16,152,176 — unresolved within range

Continued fraction of √n

√1,015,980 = [1007; (1, 22, 1, 2014)]

Period length 4 — the block in parentheses repeats forever.

Representations

In words
one million fifteen thousand nine hundred eighty
Ordinal
1015980th
Binary
11111000000010101100
Octal
3700254
Hexadecimal
0xF80AC
Base64
D4Cs
One's complement
4,293,951,315 (32-bit)
Scientific notation
1.01598 × 10⁶
As a duration
1,015,980 s = 11 days, 18 hours, 13 minutes
In other bases
ternary (3) 1220121122220
quaternary (4) 3320002230
quinary (5) 230002410
senary (6) 33435340
septenary (7) 11431020
nonary (9) 1817586
undecimal (11) 634359
duodecimal (12) 40bb50
tridecimal (13) 297594
tetradecimal (14) 1c6380
pentadecimal (15) 151070

As an angle

1,015,980° = 2,822 × 360° + 60°
60° ≈ 1.047 rad
Compass bearing: ENE (east-northeast)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹 𒌋𒁹𒁹𒁹 ·
Egyptian hieroglyphic
𓁨𓂍𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆
Chinese
一百零一萬五千九百八十
Chinese (financial)
壹佰零壹萬伍仟玖佰捌拾
In other modern scripts
Eastern Arabic ١٠١٥٩٨٠ Devanagari १०१५९८० Bengali ১০১৫৯৮০ Tamil ௧௦௧௫௯௮௦ Thai ๑๐๑๕๙๘๐ Tibetan ༡༠༡༥༩༨༠ Khmer ១០១៥៩៨០ Lao ໑໐໑໕໙໘໐ Burmese ၁၀၁၅၉၈၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1015980, here are decompositions:

  • 13 + 1015967 = 1015980
  • 61 + 1015919 = 1015980
  • 67 + 1015913 = 1015980
  • 73 + 1015907 = 1015980
  • 83 + 1015897 = 1015980
  • 89 + 1015891 = 1015980
  • 103 + 1015877 = 1015980
  • 109 + 1015871 = 1015980

Showing the first eight; more decompositions exist.

Hex color
#0F80AC
RGB(15, 128, 172)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.128.172.

Address
0.15.128.172
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.128.172

Unspecified address (0.0.0.0/8) — "this network" placeholder.

Possible date

Could be parsed as a date. Most likely interpretation: Tuesday, January 1, 5980 (MDDYYYY (US, single-digit month)).

Other possible interpretations (2)
  • 5980-10-01 (MMDYYYY (US, single-digit day))
  • 5980-01-10 (DDMYYYY (Euro, single-digit month))
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 1,015,980 and was likely granted around 1911.

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°.