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1,005,138

1,005,138 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.).

1,005,138 (one million five thousand one hundred thirty-eight) is an even 7-digit number. It is a composite number with 24 divisors, and factors as 2 × 3² × 19 × 2,939. Its proper divisors sum to 1,288,062, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xF5652.

Abundant Number Arithmetic Number Cube-Free Gapful Number Happy Number Harshad / Niven Odious Number Pernicious Number Self Number Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
18
Digit product
0
Digital root
9
Palindrome
No
Bit width
20 bits
Reversed
8,315,001
Square (n²)
1,010,302,399,044
Cube (n³)
1,015,493,332,770,288,072
Divisor count
24
σ(n) — sum of divisors
2,293,200
φ(n) — Euler's totient
317,304
Sum of prime factors
2,966

Primality

Prime factorization: 2 × 3 2 × 19 × 2939

Nearest primes: 1,005,133 (−5) · 1,005,143 (+5)

Divisors & multiples

All divisors (24)
1 · 2 · 3 · 6 · 9 · 18 · 19 · 38 · 57 · 114 · 171 · 342 · 2939 · 5878 · 8817 · 17634 · 26451 · 52902 · 55841 · 111682 · 167523 · 335046 · 502569 (half) · 1005138
Aliquot sum (sum of proper divisors): 1,288,062
Factor pairs (a × b = 1,005,138)
1 × 1005138
2 × 502569
3 × 335046
6 × 167523
9 × 111682
18 × 55841
19 × 52902
38 × 26451
57 × 17634
114 × 8817
171 × 5878
342 × 2939
First multiples
1,005,138 · 2,010,276 (double) · 3,015,414 · 4,020,552 · 5,025,690 · 6,030,828 · 7,035,966 · 8,041,104 · 9,046,242 · 10,051,380

Sums & aliquot sequence

As consecutive integers: 335,045 + 335,046 + 335,047 251,283 + 251,284 + 251,285 + 251,286 111,678 + 111,679 + … + 111,686 83,756 + 83,757 + … + 83,767
Aliquot sequence: 1,005,138 1,288,062 1,598,514 1,613,838 1,613,850 3,207,270 5,190,810 7,447,782 7,525,770 13,116,918 13,191,738 19,187,142 22,139,178 22,139,190 37,373,130 63,386,550 122,021,226 — unresolved within range

Continued fraction of √n

√1,005,138 = [1002; (1, 1, 3, 3, 3, 1, 1, 5, 6, 1, 4, 5, 1, 1, 1, 3, 1, 1, 11, 2, 4, 5, 1, 3, …)]

Representations

In words
one million five thousand one hundred thirty-eight
Ordinal
1005138th
Binary
11110101011001010010
Octal
3653122
Hexadecimal
0xF5652
Base64
D1ZS
One's complement
4,293,962,157 (32-bit)
Scientific notation
1.005138 × 10⁶
As a duration
1,005,138 s = 11 days, 15 hours, 12 minutes, 18 seconds
In other bases
ternary (3) 1220001210100
quaternary (4) 3311121102
quinary (5) 224131023
senary (6) 33313230
septenary (7) 11354301
nonary (9) 1801710
undecimal (11) 6271a2
duodecimal (12) 405816
tridecimal (13) 292674
tetradecimal (14) 1c2438
pentadecimal (15) 14cc43

As an angle

1,005,138° = 2,792 × 360° + 18°
18° ≈ 0.314 rad
Compass bearing: NNE (north-northeast)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓁨𓆼𓆼𓆼𓆼𓆼𓍢𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Chinese
一百萬五千一百三十八
Chinese (financial)
壹佰萬伍仟壹佰參拾捌
In other modern scripts
Eastern Arabic ١٠٠٥١٣٨ Devanagari १००५१३८ Bengali ১০০৫১৩৮ Tamil ௧௦௦௫௧௩௮ Thai ๑๐๐๕๑๓๘ Tibetan ༡༠༠༥༡༣༨ Khmer ១០០៥១៣៨ Lao ໑໐໐໕໑໓໘ Burmese ၁၀၀၅၁၃၈

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1005138, here are decompositions:

  • 5 + 1005133 = 1005138
  • 7 + 1005131 = 1005138
  • 31 + 1005107 = 1005138
  • 37 + 1005101 = 1005138
  • 59 + 1005079 = 1005138
  • 67 + 1005071 = 1005138
  • 89 + 1005049 = 1005138
  • 97 + 1005041 = 1005138

Showing the first eight; more decompositions exist.

Hex color
#0F5652
RGB(15, 86, 82)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.86.82.

Address
0.15.86.82
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.86.82

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 1,005,138 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°.