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1,042,380

1,042,380 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.).

1,042,380 (one million forty-two thousand three hundred eighty) is an even 7-digit number. It is a composite number with 36 divisors, and factors as 2² × 3² × 5 × 5,791. Its proper divisors sum to 2,120,052, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xFE7CC.

Abundant Number Cube-Free Evil Number Gapful Number Happy Number Harshad / Niven Refactorable 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
832,401
Square (n²)
1,086,556,064,400
Cube (n³)
1,132,604,310,409,272,000
Divisor count
36
σ(n) — sum of divisors
3,162,432
φ(n) — Euler's totient
277,920
Sum of prime factors
5,806

Primality

Prime factorization: 2 2 × 3 2 × 5 × 5791

Nearest primes: 1,042,373 (−7) · 1,042,381 (+1)

Divisors & multiples

All divisors (36)
1 · 2 · 3 · 4 · 5 · 6 · 9 · 10 · 12 · 15 · 18 · 20 · 30 · 36 · 45 · 60 · 90 · 180 · 5791 · 11582 · 17373 · 23164 · 28955 · 34746 · 52119 · 57910 · 69492 · 86865 · 104238 · 115820 · 173730 · 208476 · 260595 · 347460 · 521190 (half) · 1042380
Aliquot sum (sum of proper divisors): 2,120,052
Factor pairs (a × b = 1,042,380)
1 × 1042380
2 × 521190
3 × 347460
4 × 260595
5 × 208476
6 × 173730
9 × 115820
10 × 104238
12 × 86865
15 × 69492
18 × 57910
20 × 52119
30 × 34746
36 × 28955
45 × 23164
60 × 17373
90 × 11582
180 × 5791
First multiples
1,042,380 · 2,084,760 (double) · 3,127,140 · 4,169,520 · 5,211,900 · 6,254,280 · 7,296,660 · 8,339,040 · 9,381,420 · 10,423,800

Sums & aliquot sequence

As consecutive integers: 347,459 + 347,460 + 347,461 208,474 + 208,475 + 208,476 + 208,477 + 208,478 130,294 + 130,295 + … + 130,301 115,816 + 115,817 + … + 115,824
Aliquot sequence: 1,042,380 2,120,052 3,276,780 6,606,324 10,093,086 12,523,266 18,487,038 20,646,402 26,545,470 50,108,610 70,152,126 82,907,202 106,868,670 154,459,362 154,459,374 155,637,138 155,637,150 — unresolved within range

Continued fraction of √n

√1,042,380 = [1020; (1, 32, 2, 9, 2, 7, 2, 1, 6, 1, 1, 1, 3, 5, 6, 2, 1, 1, 1, 13, 2, 5, 19, 2, …)]

Representations

In words
one million forty-two thousand three hundred eighty
Ordinal
1042380th
Binary
11111110011111001100
Octal
3763714
Hexadecimal
0xFE7CC
Base64
D+fM
One's complement
4,293,924,915 (32-bit)
Scientific notation
1.04238 × 10⁶
As a duration
1,042,380 s = 12 days, 1 hour, 33 minutes
In other bases
ternary (3) 1221221212200
quaternary (4) 3332133030
quinary (5) 231324010
senary (6) 34201500
septenary (7) 11601003
nonary (9) 1857780
undecimal (11) 652179
duodecimal (12) 423290
tridecimal (13) 2a65c1
tetradecimal (14) 1d1c3a
pentadecimal (15) 158cc0

As an angle

1,042,380° = 2,895 × 360° + 180°
180° ≈ 3.142 rad
Compass bearing: S (south)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹 ·
Egyptian hieroglyphic
𓁨𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆
Chinese
一百零四萬二千三百八十
Chinese (financial)
壹佰零肆萬貳仟參佰捌拾
In other modern scripts
Eastern Arabic ١٠٤٢٣٨٠ Devanagari १०४२३८० Bengali ১০৪২৩৮০ Tamil ௧௦௪௨௩௮௦ Thai ๑๐๔๒๓๘๐ Tibetan ༡༠༤༢༣༨༠ Khmer ១០៤២៣៨០ Lao ໑໐໔໒໓໘໐ Burmese ၁၀၄၂၃၈၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1042380, here are decompositions:

  • 7 + 1042373 = 1042380
  • 11 + 1042369 = 1042380
  • 23 + 1042357 = 1042380
  • 47 + 1042333 = 1042380
  • 71 + 1042309 = 1042380
  • 107 + 1042273 = 1042380
  • 109 + 1042271 = 1042380
  • 113 + 1042267 = 1042380

Showing the first eight; more decompositions exist.

Hex color
#0FE7CC
RGB(15, 231, 204)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.231.204.

Address
0.15.231.204
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.231.204

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

Possible date

Could be parsed as a date. Most likely interpretation: Friday, January 4, 2380 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)
  • 2380-04-01 (DMMYYYY (Euro, single-digit day))
  • 2380-10-04 (MMDYYYY (US, single-digit day))
  • 2380-04-10 (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 1,042,380 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°.