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1,023,420

1,023,420 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.).

1,023,420 (one million twenty-three thousand four hundred twenty) is an even 7-digit number. It is a composite number with 48 divisors, and factors as 2² × 3 × 5 × 37 × 461. Its proper divisors sum to 1,925,988, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xF9DBC.

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

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
12
Digit product
0
Digital root
3
Palindrome
No
Bit width
20 bits
Reversed
243,201
Square (n²)
1,047,388,496,400
Cube (n³)
1,071,918,334,985,688,000
Divisor count
48
σ(n) — sum of divisors
2,949,408
φ(n) — Euler's totient
264,960
Sum of prime factors
510

Primality

Prime factorization: 2 2 × 3 × 5 × 37 × 461

Nearest primes: 1,023,419 (−1) · 1,023,461 (+41)

Divisors & multiples

All divisors (48)
1 · 2 · 3 · 4 · 5 · 6 · 10 · 12 · 15 · 20 · 30 · 37 · 60 · 74 · 111 · 148 · 185 · 222 · 370 · 444 · 461 · 555 · 740 · 922 · 1110 · 1383 · 1844 · 2220 · 2305 · 2766 · 4610 · 5532 · 6915 · 9220 · 13830 · 17057 · 27660 · 34114 · 51171 · 68228 · 85285 · 102342 · 170570 · 204684 · 255855 · 341140 · 511710 (half) · 1023420
Aliquot sum (sum of proper divisors): 1,925,988
Factor pairs (a × b = 1,023,420)
1 × 1023420
2 × 511710
3 × 341140
4 × 255855
5 × 204684
6 × 170570
10 × 102342
12 × 85285
15 × 68228
20 × 51171
30 × 34114
37 × 27660
60 × 17057
74 × 13830
111 × 9220
148 × 6915
185 × 5532
222 × 4610
370 × 2766
444 × 2305
461 × 2220
555 × 1844
740 × 1383
922 × 1110
First multiples
1,023,420 · 2,046,840 (double) · 3,070,260 · 4,093,680 · 5,117,100 · 6,140,520 · 7,163,940 · 8,187,360 · 9,210,780 · 10,234,200

Sums & aliquot sequence

As consecutive integers: 341,139 + 341,140 + 341,141 204,682 + 204,683 + 204,684 + 204,685 + 204,686 127,924 + 127,925 + … + 127,931 68,221 + 68,222 + … + 68,235
Aliquot sequence: 1,023,420 1,925,988 2,568,012 3,463,524 5,971,356 9,534,316 8,806,384 8,326,200 17,486,880 40,864,224 67,153,056 109,123,968 196,386,432 402,883,968 667,277,592 1,001,549,208 1,729,949,352 — unresolved within range

Continued fraction of √n

√1,023,420 = [1011; (1, 1, 1, 3, 1, 7, 2, 1, 16, 5, 1, 1, 5, 10, 1, 504, 1, 10, 5, 1, 1, 5, 16, 1, …)]

Period length 32 — the block in parentheses repeats forever.

Representations

In words
one million twenty-three thousand four hundred twenty
Ordinal
1023420th
Binary
11111001110110111100
Octal
3716674
Hexadecimal
0xF9DBC
Base64
D528
One's complement
4,293,943,875 (32-bit)
Scientific notation
1.02342 × 10⁶
As a duration
1,023,420 s = 11 days, 20 hours, 17 minutes
In other bases
ternary (3) 1220222212110
quaternary (4) 3321312330
quinary (5) 230222140
senary (6) 33534020
septenary (7) 11461506
nonary (9) 1828773
undecimal (11) 639a02
duodecimal (12) 414310
tridecimal (13) 29aa98
tetradecimal (14) 1c8d76
pentadecimal (15) 153380

As an angle

1,023,420° = 2,842 × 360° + 300°
300° ≈ 5.236 rad
Compass bearing: WNW (west-northwest)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 ·
Egyptian hieroglyphic
𓁨𓂍𓂍𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓎆𓎆
Chinese
一百零二萬三千四百二十
Chinese (financial)
壹佰零貳萬參仟肆佰貳拾
In other modern scripts
Eastern Arabic ١٠٢٣٤٢٠ Devanagari १०२३४२० Bengali ১০২৩৪২০ Tamil ௧௦௨௩௪௨௦ Thai ๑๐๒๓๔๒๐ Tibetan ༡༠༢༣༤༢༠ Khmer ១០២៣៤២០ Lao ໑໐໒໓໔໒໐ Burmese ၁၀၂၃၄၂၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1023420, here are decompositions:

  • 7 + 1023413 = 1023420
  • 11 + 1023409 = 1023420
  • 29 + 1023391 = 1023420
  • 31 + 1023389 = 1023420
  • 53 + 1023367 = 1023420
  • 59 + 1023361 = 1023420
  • 67 + 1023353 = 1023420
  • 103 + 1023317 = 1023420

Showing the first eight; more decompositions exist.

Hex color
#0F9DBC
RGB(15, 157, 188)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.157.188.

Address
0.15.157.188
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.157.188

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

Possible date

Could be parsed as a date. Most likely interpretation: Sunday, January 2, 3420 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)
  • 3420-02-01 (DMMYYYY (Euro, single-digit day))
  • 3420-10-02 (MMDYYYY (US, single-digit day))
  • 3420-02-10 (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 1,023,420 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°.