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1,055,142

1,055,142 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.).

1,055,142 (one million fifty-five thousand one hundred forty-two) is an even 7-digit number. It is a composite number with 36 divisors, and factors as 2 × 3² × 11 × 73². Its proper divisors sum to 1,473,462, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x1019A6.

Abundant Number Arithmetic Number Cube-Free Evil Number Harshad / Niven Practical Number Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
18
Digit product
0
Digital root
9
Palindrome
No
Bit width
21 bits
Reversed
2,415,501
Square (n²)
1,113,324,640,164
Cube (n³)
1,174,715,587,471,923,288
Divisor count
36
σ(n) — sum of divisors
2,528,604
φ(n) — Euler's totient
315,360
Sum of prime factors
165

Primality

Prime factorization: 2 × 3 2 × 11 × 73 2

Nearest primes: 1,055,141 (−1) · 1,055,143 (+1)

Divisors & multiples

All divisors (36)
1 · 2 · 3 · 6 · 9 · 11 · 18 · 22 · 33 · 66 · 73 · 99 · 146 · 198 · 219 · 438 · 657 · 803 · 1314 · 1606 · 2409 · 4818 · 5329 · 7227 · 10658 · 14454 · 15987 · 31974 · 47961 · 58619 · 95922 · 117238 · 175857 · 351714 · 527571 (half) · 1055142
Aliquot sum (sum of proper divisors): 1,473,462
Factor pairs (a × b = 1,055,142)
1 × 1055142
2 × 527571
3 × 351714
6 × 175857
9 × 117238
11 × 95922
18 × 58619
22 × 47961
33 × 31974
66 × 15987
73 × 14454
99 × 10658
146 × 7227
198 × 5329
219 × 4818
438 × 2409
657 × 1606
803 × 1314
First multiples
1,055,142 · 2,110,284 (double) · 3,165,426 · 4,220,568 · 5,275,710 · 6,330,852 · 7,385,994 · 8,441,136 · 9,496,278 · 10,551,420

Sums & aliquot sequence

As consecutive integers: 351,713 + 351,714 + 351,715 263,784 + 263,785 + 263,786 + 263,787 117,234 + 117,235 + … + 117,242 95,917 + 95,918 + … + 95,927
Aliquot sequence: 1,055,142 → 1,473,462 → 1,752,618 → 2,253,462 → 2,460,522 → 2,460,534 → 2,723,466 → 2,856,822 → 2,856,834 → 3,478,638 → 3,478,650 → 6,383,814 → 6,383,826 → 7,802,574 → 9,131,826 → 11,044,302 → 11,806,338 — unresolved within range

Continued fraction of √n

√1,055,142 = [1027; (4, 1, 37, 4, 11, 25, 3, 1, 1, 1, 5, 2, 3, 1, 3, 3, 4, 6, 1, 1, 1, 21, 1, 12, …)]

Representations

In words
one million fifty-five thousand one hundred forty-two
Ordinal
1055142nd
Binary
100000001100110100110
Octal
4014646
Hexadecimal
0x1019A6
Base64
EBmm
One's complement
4,293,912,153 (32-bit)
Scientific notation
1.055142 × 10⁶
As a duration
1,055,142 s = 12 days, 5 hours, 5 minutes, 42 seconds
In other bases
ternary (3) 1222121101100
quaternary (4) 10001212212
quinary (5) 232231032
senary (6) 34340530
septenary (7) 11653134
nonary (9) 1877340
undecimal (11) 660820
duodecimal (12) 42a746
tridecimal (13) 2ac35a
tetradecimal (14) 1d6754
pentadecimal (15) 15c97c

As an angle

1,055,142° = 2,930 × 360° + 342°
342° ≈ 5.969 rad
Compass bearing: NNW (north-northwest)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹
Egyptian hieroglyphic
𓁨𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓍢𓎆𓎆𓎆𓎆𓏺𓏺
Chinese
一百零五萬五千一百四十二
Chinese (financial)
壹佰零伍萬伍仟壹佰肆拾貳
In other modern scripts
Eastern Arabic ١٠٥٥١٤٢ Devanagari १०५५१४२ Bengali ১০৫৫১৪২ Tamil ௧௦௫௫௧௪௨ Thai ๑๐๕๕๑๔๒ Tibetan ༡༠༥༥༡༤༢ Khmer ១០៥៥១៤២ Lao ໑໐໕໕໑໔໒ Burmese ၁၀၅၅၁၄၂

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1055142, here are decompositions:

  • 5 + 1055137 = 1055142
  • 29 + 1055113 = 1055142
  • 59 + 1055083 = 1055142
  • 79 + 1055063 = 1055142
  • 103 + 1055039 = 1055142
  • 149 + 1054993 = 1055142
  • 191 + 1054951 = 1055142
  • 211 + 1054931 = 1055142

Showing the first eight; more decompositions exist.

Hex color
#1019A6
RGB(16, 25, 166)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.16.25.166.

Address
0.16.25.166
Class
reserved
IPv4-mapped IPv6
::ffff:0.16.25.166

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

Possible date

Could be parsed as a date. Most likely interpretation: Monday, January 5, 5142 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)
  • 5142-05-01 (DMMYYYY (Euro, single-digit day))
  • 5142-10-05 (MMDYYYY (US, single-digit day))
  • 5142-05-10 (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 1,055,142 and was likely granted around 1912.

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°.