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1,005,120

1,005,120 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.).

1,005,120 (one million five thousand one hundred twenty) is an even 7-digit number. It is a composite number with 84 divisors, and factors as 2⁶ × 3² × 5 × 349. Its proper divisors sum to 2,461,980, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xF5640.

Abundant Number Arithmetic Number Gapful Number Happy Number Harshad / Niven Odious Number Practical Number Weird Number

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
9
Digit product
0
Digital root
9
Palindrome
No
Bit width
20 bits
Reversed
215,001
Square (n²)
1,010,266,214,400
Cube (n³)
1,015,438,777,417,728,000
Divisor count
84
σ(n) — sum of divisors
3,467,100
φ(n) — Euler's totient
267,264
Sum of prime factors
372

Primality

Prime factorization: 2 6 × 3 2 × 5 × 349

Nearest primes: 1,005,107 (−13) · 1,005,131 (+11)

Divisors & multiples

All divisors (84)
1 · 2 · 3 · 4 · 5 · 6 · 8 · 9 · 10 · 12 · 15 · 16 · 18 · 20 · 24 · 30 · 32 · 36 · 40 · 45 · 48 · 60 · 64 · 72 · 80 · 90 · 96 · 120 · 144 · 160 · 180 · 192 · 240 · 288 · 320 · 349 · 360 · 480 · 576 · 698 · 720 · 960 · 1047 · 1396 · 1440 · 1745 · 2094 · 2792 · 2880 · 3141 · 3490 · 4188 · 5235 · 5584 · 6282 · 6980 · 8376 · 10470 · 11168 · 12564 · 13960 · 15705 · 16752 · 20940 · 22336 · 25128 · 27920 · 31410 · 33504 · 41880 · 50256 · 55840 · 62820 · 67008 · 83760 · 100512 · 111680 · 125640 · 167520 · 201024 · 251280 · 335040 · 502560 (half) · 1005120
Aliquot sum (sum of proper divisors): 2,461,980
Factor pairs (a × b = 1,005,120)
1 × 1005120
2 × 502560
3 × 335040
4 × 251280
5 × 201024
6 × 167520
8 × 125640
9 × 111680
10 × 100512
12 × 83760
15 × 67008
16 × 62820
18 × 55840
20 × 50256
24 × 41880
30 × 33504
32 × 31410
36 × 27920
40 × 25128
45 × 22336
48 × 20940
60 × 16752
64 × 15705
72 × 13960
80 × 12564
90 × 11168
96 × 10470
120 × 8376
144 × 6980
160 × 6282
180 × 5584
192 × 5235
240 × 4188
288 × 3490
320 × 3141
349 × 2880
360 × 2792
480 × 2094
576 × 1745
698 × 1440
720 × 1396
960 × 1047
First multiples
1,005,120 · 2,010,240 (double) · 3,015,360 · 4,020,480 · 5,025,600 · 6,030,720 · 7,035,840 · 8,040,960 · 9,046,080 · 10,051,200

Sums & aliquot sequence

As a sum of two squares: 192² + 984² = 672² + 744²
As consecutive integers: 335,039 + 335,040 + 335,041 201,022 + 201,023 + 201,024 + 201,025 + 201,026 111,676 + 111,677 + … + 111,684 67,001 + 67,002 + … + 67,015
Aliquot sequence: 1,005,120 2,461,980 4,624,260 8,679,996 16,361,748 28,179,840 68,638,560 149,234,592 275,480,160 610,817,952 1,060,002,528 1,950,439,872 3,210,099,464 3,861,101,176 3,378,463,544 2,956,155,616 3,003,059,744 — unresolved within range

Continued fraction of √n

√1,005,120 = [1002; (1, 1, 3, 1, 9, 1, 2, 1, 1, 2, 1, 7, 1, 1, 2, 222, 2, 1, 1, 7, 1, 2, 1, 1, …)]

Period length 32 — the block in parentheses repeats forever.

Representations

In words
one million five thousand one hundred twenty
Ordinal
1005120th
Binary
11110101011001000000
Octal
3653100
Hexadecimal
0xF5640
Base64
D1ZA
One's complement
4,293,962,175 (32-bit)
Scientific notation
1.00512 × 10⁶
As a duration
1,005,120 s = 11 days, 15 hours, 12 minutes
In other bases
ternary (3) 1220001202200
quaternary (4) 3311121000
quinary (5) 224130440
senary (6) 33313200
septenary (7) 11354244
nonary (9) 1801680
undecimal (11) 627186
duodecimal (12) 405800
tridecimal (13) 29265c
tetradecimal (14) 1c2424
pentadecimal (15) 14cc30

As an angle

1,005,120° = 2,792 × 360°
0° ≈ 0 rad
Compass bearing: N (north)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒁹𒁹 ·
Egyptian hieroglyphic
𓁨𓆼𓆼𓆼𓆼𓆼𓍢𓎆𓎆
Chinese
一百萬五千一百二十
Chinese (financial)
壹佰萬伍仟壹佰貳拾
In other modern scripts
Eastern Arabic ١٠٠٥١٢٠ Devanagari १००५१२० Bengali ১০০৫১২০ Tamil ௧௦௦௫௧௨௦ Thai ๑๐๐๕๑๒๐ Tibetan ༡༠༠༥༡༢༠ Khmer ១០០៥១២០ Lao ໑໐໐໕໑໒໐ Burmese ၁၀၀၅၁၂၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1005120, here are decompositions:

  • 13 + 1005107 = 1005120
  • 19 + 1005101 = 1005120
  • 41 + 1005079 = 1005120
  • 47 + 1005073 = 1005120
  • 71 + 1005049 = 1005120
  • 79 + 1005041 = 1005120
  • 101 + 1005019 = 1005120
  • 107 + 1005013 = 1005120

Showing the first eight; more decompositions exist.

Hex color
#0F5640
RGB(15, 86, 64)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.86.64.

Address
0.15.86.64
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.86.64

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 1,005,120 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°.