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1,015,138

1,015,138 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.).

1,015,138 (one million fifteen thousand one hundred thirty-eight) is an even 7-digit number. It is a composite number with 16 divisors, and factors as 2 × 17 × 73 × 409. Written other ways, in hexadecimal, 0xF7D62.

Cube-Free Deficient Number Odious Number Pernicious Number Recamán's Sequence Squarefree

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
19
Digit product
0
Digital root
1
Palindrome
No
Bit width
20 bits
Reversed
8,315,101
Recamán's sequence
a(364,591) = 1,015,138
Square (n²)
1,030,505,159,044
Cube (n³)
1,046,104,946,141,608,072
Divisor count
16
σ(n) — sum of divisors
1,638,360
φ(n) — Euler's totient
470,016
Sum of prime factors
501

Primality

Prime factorization: 2 × 17 × 73 × 409

Nearest primes: 1,015,127 (−11) · 1,015,139 (+1)

Divisors & multiples

All divisors (16)
1 · 2 · 17 · 34 · 73 · 146 · 409 · 818 · 1241 · 2482 · 6953 · 13906 · 29857 · 59714 · 507569 (half) · 1015138
Aliquot sum (sum of proper divisors): 623,222
Factor pairs (a × b = 1,015,138)
1 × 1015138
2 × 507569
17 × 59714
34 × 29857
73 × 13906
146 × 6953
409 × 2482
818 × 1241
First multiples
1,015,138 · 2,030,276 (double) · 3,045,414 · 4,060,552 · 5,075,690 · 6,090,828 · 7,105,966 · 8,121,104 · 9,136,242 · 10,151,380

Sums & aliquot sequence

As a sum of two squares: 33² + 1,007² = 327² + 953² = 503² + 873² = 687² + 737²
As consecutive integers: 253,783 + 253,784 + 253,785 + 253,786 59,706 + 59,707 + … + 59,722 14,895 + 14,896 + … + 14,962 13,870 + 13,871 + … + 13,942
Aliquot sequence: 1,015,138 623,222 315,514 205,766 139,834 71,846 35,926 26,282 15,514 7,760 10,468 7,858 3,932 2,956 2,224 2,116 1,755 — unresolved within range

Continued fraction of √n

√1,015,138 = [1007; (1, 1, 5, 1, 1, 1, 24, 4, 2, 1, 2, 2, 6, 1, 13, 1, 5, 2, 1, 1, 1, 1, 11, 1, …)]

Period length 60 — the block in parentheses repeats forever.

Representations

In words
one million fifteen thousand one hundred thirty-eight
Ordinal
1015138th
Binary
11110111110101100010
Octal
3676542
Hexadecimal
0xF7D62
Base64
D31i
One's complement
4,293,952,157 (32-bit)
Scientific notation
1.015138 × 10⁶
As a duration
1,015,138 s = 11 days, 17 hours, 58 minutes, 58 seconds
In other bases
ternary (3) 1220120111201
quaternary (4) 3313311202
quinary (5) 224441023
senary (6) 33431414
septenary (7) 11425405
nonary (9) 1816451
undecimal (11) 633763
duodecimal (12) 40b56a
tridecimal (13) 297097
tetradecimal (14) 1c5d3c
pentadecimal (15) 150bad

As an angle

1,015,138° = 2,819 × 360° + 298°
298° ≈ 5.201 rad
Compass bearing: WNW (west-northwest)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓁨𓂍𓆼𓆼𓆼𓆼𓆼𓍢𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Chinese
一百零一萬五千一百三十八
Chinese (financial)
壹佰零壹萬伍仟壹佰參拾捌
In other modern scripts
Eastern Arabic ١٠١٥١٣٨ Devanagari १०१५१३८ Bengali ১০১৫১৩৮ Tamil ௧௦௧௫௧௩௮ Thai ๑๐๑๕๑๓๘ Tibetan ༡༠༡༥༡༣༨ Khmer ១០១៥១៣៨ Lao ໑໐໑໕໑໓໘ Burmese ၁၀၁၅၁၃၈

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1015138, here are decompositions:

  • 11 + 1015127 = 1015138
  • 41 + 1015097 = 1015138
  • 71 + 1015067 = 1015138
  • 149 + 1014989 = 1015138
  • 197 + 1014941 = 1015138
  • 251 + 1014887 = 1015138
  • 269 + 1014869 = 1015138
  • 317 + 1014821 = 1015138

Showing the first eight; more decompositions exist.

Hex color
#0F7D62
RGB(15, 125, 98)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.125.98.

Address
0.15.125.98
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.125.98

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

Possible date

Could be parsed as a date. Most likely interpretation: Saturday, January 1, 5138 (MDDYYYY (US, single-digit month)).

Other possible interpretations (2)
  • 5138-10-01 (MMDYYYY (US, single-digit day))
  • 5138-01-10 (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 1,015,138 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°.