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1,025,420

1,025,420 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.).

1,025,420 (one million twenty-five thousand four hundred twenty) is an even 7-digit number. It is a composite number with 48 divisors, and factors as 2² × 5 × 11 × 59 × 79. Its proper divisors sum to 1,393,780, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xFA58C.

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
14
Digit product
0
Digital root
5
Palindrome
No
Bit width
20 bits
Reversed
245,201
Square (n²)
1,051,486,176,400
Cube (n³)
1,078,214,955,004,088,000
Divisor count
48
σ(n) — sum of divisors
2,419,200
φ(n) — Euler's totient
361,920
Sum of prime factors
158

Primality

Prime factorization: 2 2 × 5 × 11 × 59 × 79

Nearest primes: 1,025,419 (−1) · 1,025,443 (+23)

Divisors & multiples

All divisors (48)
1 · 2 · 4 · 5 · 10 · 11 · 20 · 22 · 44 · 55 · 59 · 79 · 110 · 118 · 158 · 220 · 236 · 295 · 316 · 395 · 590 · 649 · 790 · 869 · 1180 · 1298 · 1580 · 1738 · 2596 · 3245 · 3476 · 4345 · 4661 · 6490 · 8690 · 9322 · 12980 · 17380 · 18644 · 23305 · 46610 · 51271 · 93220 · 102542 · 205084 · 256355 · 512710 (half) · 1025420
Aliquot sum (sum of proper divisors): 1,393,780
Factor pairs (a × b = 1,025,420)
1 × 1025420
2 × 512710
4 × 256355
5 × 205084
10 × 102542
11 × 93220
20 × 51271
22 × 46610
44 × 23305
55 × 18644
59 × 17380
79 × 12980
110 × 9322
118 × 8690
158 × 6490
220 × 4661
236 × 4345
295 × 3476
316 × 3245
395 × 2596
590 × 1738
649 × 1580
790 × 1298
869 × 1180
First multiples
1,025,420 · 2,050,840 (double) · 3,076,260 · 4,101,680 · 5,127,100 · 6,152,520 · 7,177,940 · 8,203,360 · 9,228,780 · 10,254,200

Sums & aliquot sequence

As consecutive integers: 205,082 + 205,083 + 205,084 + 205,085 + 205,086 128,174 + 128,175 + … + 128,181 93,215 + 93,216 + … + 93,225 25,616 + 25,617 + … + 25,655
Aliquot sequence: 1,025,420 1,393,780 1,555,628 1,368,244 1,026,190 1,099,250 959,014 685,034 500,374 368,234 184,120 230,240 314,080 490,304 509,440 718,160 996,016 — unresolved within range

Continued fraction of √n

√1,025,420 = [1012; (1, 1, 1, 2, 2, 1, 1, 1, 1, 4, 1, 1, 2, 5, 4, 1, 1, 2, 4, 10, 9, 1, 1, 404, …)]

Period length 48 — the block in parentheses repeats forever.

Representations

In words
one million twenty-five thousand four hundred twenty
Ordinal
1025420th
Binary
11111010010110001100
Octal
3722614
Hexadecimal
0xFA58C
Base64
D6WM
One's complement
4,293,941,875 (32-bit)
Scientific notation
1.02542 × 10⁶
As a duration
1,025,420 s = 11 days, 20 hours, 50 minutes, 20 seconds
In other bases
ternary (3) 1221002121112
quaternary (4) 3322112030
quinary (5) 230303140
senary (6) 33551152
septenary (7) 11500364
nonary (9) 1832545
undecimal (11) 640460
duodecimal (12) 4154b8
tridecimal (13) 29b976
tetradecimal (14) 1c99a4
pentadecimal (15) 153c65

As an angle

1,025,420° = 2,848 × 360° + 140°
140° ≈ 2.443 rad
Compass bearing: SE (southeast)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋 𒌋𒌋
Egyptian hieroglyphic
𓁨𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓎆𓎆
Chinese
一百零二萬五千四百二十
Chinese (financial)
壹佰零貳萬伍仟肆佰貳拾
In other modern scripts
Eastern Arabic ١٠٢٥٤٢٠ Devanagari १०२५४२० Bengali ১০২৫৪২০ Tamil ௧௦௨௫௪௨௦ Thai ๑๐๒๕๔๒๐ Tibetan ༡༠༢༥༤༢༠ Khmer ១០២៥៤២០ Lao ໑໐໒໕໔໒໐ Burmese ၁၀၂၅၄၂၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1025420, here are decompositions:

  • 3 + 1025417 = 1025420
  • 7 + 1025413 = 1025420
  • 13 + 1025407 = 1025420
  • 37 + 1025383 = 1025420
  • 73 + 1025347 = 1025420
  • 139 + 1025281 = 1025420
  • 163 + 1025257 = 1025420
  • 181 + 1025239 = 1025420

Showing the first eight; more decompositions exist.

Hex color
#0FA58C
RGB(15, 165, 140)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.165.140.

Address
0.15.165.140
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.165.140

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

Possible date

Could be parsed as a date. Most likely interpretation: Sunday, January 2, 5420 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)
  • 5420-02-01 (DMMYYYY (Euro, single-digit day))
  • 5420-10-02 (MMDYYYY (US, single-digit day))
  • 5420-02-10 (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 1,025,420 and was likely granted around 1912.

Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.

Position in π

The digit sequence 1025420 first appears in π at position 36,842 of the decimal expansion (the 36,842ordinal-suffix:nd digit after the integer 3).

Search range: the first 1,000,000 fractional digits of π. Any 6-digit-or-shorter string is virtually guaranteed to appear in there — the more interesting signal is the position.

Related reading

  • Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.