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1,026,142

1,026,142 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.).

1,026,142 (one million twenty-six thousand one hundred forty-two) is an even 7-digit number. It is a composite number with 16 divisors, and factors as 2 × 13 × 61 × 647. Written other ways, in hexadecimal, 0xFA85E.

Arithmetic Number Cube-Free Deficient Number Evil Number Squarefree

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
16
Digit product
0
Digital root
7
Palindrome
No
Bit width
20 bits
Reversed
2,416,201
Square (n²)
1,052,967,404,164
Cube (n³)
1,080,494,078,043,655,288
Divisor count
16
σ(n) — sum of divisors
1,687,392
φ(n) — Euler's totient
465,120
Sum of prime factors
723

Primality

Prime factorization: 2 × 13 × 61 × 647

Nearest primes: 1,026,139 (−3) · 1,026,143 (+1)

Divisors & multiples

All divisors (16)
1 · 2 · 13 · 26 · 61 · 122 · 647 · 793 · 1294 · 1586 · 8411 · 16822 · 39467 · 78934 · 513071 (half) · 1026142
Aliquot sum (sum of proper divisors): 661,250
Factor pairs (a × b = 1,026,142)
1 × 1026142
2 × 513071
13 × 78934
26 × 39467
61 × 16822
122 × 8411
647 × 1586
793 × 1294
First multiples
1,026,142 · 2,052,284 (double) · 3,078,426 · 4,104,568 · 5,130,710 · 6,156,852 · 7,182,994 · 8,209,136 · 9,235,278 · 10,261,420

Sums & aliquot sequence

As consecutive integers: 256,534 + 256,535 + 256,536 + 256,537 78,928 + 78,929 + … + 78,940 19,708 + 19,709 + … + 19,759 16,792 + 16,793 + … + 16,852
Aliquot sequence: 1,026,142 661,250 634,429 33,411 20,093 355 77 19 1 0 — terminates at zero

Continued fraction of √n

√1,026,142 = [1012; (1, 74, 27, 2, 1, 2, 1, 7, 6, 2, 2, 1, 13, 1, 1, 3, 1, 17, 6, 1, 1, 1, 7, 18, …)]

Representations

In words
one million twenty-six thousand one hundred forty-two
Ordinal
1026142nd
Binary
11111010100001011110
Octal
3724136
Hexadecimal
0xFA85E
Base64
D6he
One's complement
4,293,941,153 (32-bit)
Scientific notation
1.026142 × 10⁶
As a duration
1,026,142 s = 11 days, 21 hours, 2 minutes, 22 seconds
In other bases
ternary (3) 1221010121021
quaternary (4) 3322201132
quinary (5) 230314032
senary (6) 33554354
septenary (7) 11502445
nonary (9) 1833537
undecimal (11) 640a57
duodecimal (12) 4159ba
tridecimal (13) 29c0b0
tetradecimal (14) 1c9d5c
pentadecimal (15) 154097

As an angle

1,026,142° = 2,850 × 360° + 142°
142° ≈ 2.478 rad
Compass bearing: SE (southeast)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒁹𒁹 𒌋𒌋𒁹𒁹
Egyptian hieroglyphic
𓁨𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓎆𓎆𓎆𓎆𓏺𓏺
Chinese
一百零二萬六千一百四十二
Chinese (financial)
壹佰零貳萬陸仟壹佰肆拾貳
In other modern scripts
Eastern Arabic ١٠٢٦١٤٢ Devanagari १०२६१४२ Bengali ১০২৬১৪২ Tamil ௧௦௨௬௧௪௨ Thai ๑๐๒๖๑๔๒ Tibetan ༡༠༢༦༡༤༢ Khmer ១០២៦១៤២ Lao ໑໐໒໖໑໔໒ Burmese ၁၀၂၆၁၄၂

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1026142, here are decompositions:

  • 3 + 1026139 = 1026142
  • 23 + 1026119 = 1026142
  • 41 + 1026101 = 1026142
  • 101 + 1026041 = 1026142
  • 113 + 1026029 = 1026142
  • 233 + 1025909 = 1026142
  • 251 + 1025891 = 1026142
  • 269 + 1025873 = 1026142

Showing the first eight; more decompositions exist.

Hex color
#0FA85E
RGB(15, 168, 94)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.168.94.

Address
0.15.168.94
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.168.94

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

Possible date

Could be parsed as a date. Most likely interpretation: Tuesday, January 2, 6142 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)
  • 6142-02-01 (DMMYYYY (Euro, single-digit day))
  • 6142-10-02 (MMDYYYY (US, single-digit day))
  • 6142-02-10 (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 1,026,142 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°.