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1,042,100

1,042,100 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.).

1,042,100 (one million forty-two thousand one hundred) is an even 7-digit number. It is a composite number with 36 divisors, and factors as 2² × 5² × 17 × 613. Its proper divisors sum to 1,356,184, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xFE6B4.

Abundant Number Arithmetic Number Cube-Free Gapful Number Odious Number Pernicious Number Practical Number Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
8
Digit product
0
Digital root
8
Palindrome
No
Bit width
20 bits
Reversed
12,401
Square (n²)
1,085,972,410,000
Cube (n³)
1,131,691,848,461,000,000
Divisor count
36
σ(n) — sum of divisors
2,398,284
φ(n) — Euler's totient
391,680
Sum of prime factors
644

Primality

Prime factorization: 2 2 × 5 2 × 17 × 613

Nearest primes: 1,042,099 (−1) · 1,042,103 (+3)

Divisors & multiples

All divisors (36)
1 · 2 · 4 · 5 · 10 · 17 · 20 · 25 · 34 · 50 · 68 · 85 · 100 · 170 · 340 · 425 · 613 · 850 · 1226 · 1700 · 2452 · 3065 · 6130 · 10421 · 12260 · 15325 · 20842 · 30650 · 41684 · 52105 · 61300 · 104210 · 208420 · 260525 · 521050 (half) · 1042100
Aliquot sum (sum of proper divisors): 1,356,184
Factor pairs (a × b = 1,042,100)
1 × 1042100
2 × 521050
4 × 260525
5 × 208420
10 × 104210
17 × 61300
20 × 52105
25 × 41684
34 × 30650
50 × 20842
68 × 15325
85 × 12260
100 × 10421
170 × 6130
340 × 3065
425 × 2452
613 × 1700
850 × 1226
First multiples
1,042,100 · 2,084,200 (double) · 3,126,300 · 4,168,400 · 5,210,500 · 6,252,600 · 7,294,700 · 8,336,800 · 9,378,900 · 10,421,000

Sums & aliquot sequence

As a sum of two squares: 76² + 1,018² = 134² + 1,012² = 358² + 956² = 412² + 934²
As consecutive integers: 208,418 + 208,419 + 208,420 + 208,421 + 208,422 130,259 + 130,260 + … + 130,266 61,292 + 61,293 + … + 61,308 41,672 + 41,673 + … + 41,696
Aliquot sequence: 1,042,100 1,356,184 1,186,676 890,014 503,906 310,138 155,072 152,776 160,154 80,080 169,904 225,904 274,560 753,600 1,734,584 1,579,936 1,568,804 — unresolved within range

Continued fraction of √n

√1,042,100 = [1020; (1, 4, 1, 80, 1, 4, 1, 2040)]

Period length 8 — the block in parentheses repeats forever.

Representations

In words
one million forty-two thousand one hundred
Ordinal
1042100th
Binary
11111110011010110100
Octal
3763264
Hexadecimal
0xFE6B4
Base64
D+a0
One's complement
4,293,925,195 (32-bit)
Scientific notation
1.0421 × 10⁶
As a duration
1,042,100 s = 12 days, 1 hour, 28 minutes, 20 seconds
In other bases
ternary (3) 1221221111022
quaternary (4) 3332122310
quinary (5) 231321400
senary (6) 34200312
septenary (7) 11600123
nonary (9) 1857438
undecimal (11) 651a44
duodecimal (12) 423098
tridecimal (13) 2a6437
tetradecimal (14) 1d1aba
pentadecimal (15) 158b85

As an angle

1,042,100° = 2,894 × 360° + 260°
260° ≈ 4.538 rad
Compass bearing: W (west)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋
Egyptian hieroglyphic
𓁨𓂍𓂍𓂍𓂍𓆼𓆼𓍢
Chinese
一百零四萬二千一百
Chinese (financial)
壹佰零肆萬貳仟壹佰
In other modern scripts
Eastern Arabic ١٠٤٢١٠٠ Devanagari १०४२१०० Bengali ১০৪২১০০ Tamil ௧௦௪௨௧௦௦ Thai ๑๐๔๒๑๐๐ Tibetan ༡༠༤༢༡༠༠ Khmer ១០៤២១០០ Lao ໑໐໔໒໑໐໐ Burmese ၁၀၄၂၁၀၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1042100, here are decompositions:

  • 13 + 1042087 = 1042100
  • 19 + 1042081 = 1042100
  • 61 + 1042039 = 1042100
  • 79 + 1042021 = 1042100
  • 109 + 1041991 = 1042100
  • 139 + 1041961 = 1042100
  • 151 + 1041949 = 1042100
  • 181 + 1041919 = 1042100

Showing the first eight; more decompositions exist.

Hex color
#0FE6B4
RGB(15, 230, 180)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.230.180.

Address
0.15.230.180
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.230.180

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

Possible date

Could be parsed as a date. Most likely interpretation: Monday, January 4, 2100 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)
  • 2100-04-01 (DMMYYYY (Euro, single-digit day))
  • 2100-10-04 (MMDYYYY (US, single-digit day))
  • 2100-04-10 (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 1,042,100 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°.