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1,025,490

1,025,490 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.).

1,025,490 (one million twenty-five thousand four hundred ninety) is an even 7-digit number. It is a composite number with 16 divisors, and factors as 2 × 3 × 5 × 34,183. Its proper divisors sum to 1,435,758, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xFA5D2.

Abundant Number Arithmetic Number Cube-Free Evil Number Gapful Number Semiperfect Number Squarefree

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
21
Digit product
0
Digital root
3
Palindrome
No
Bit width
20 bits
Reversed
945,201
Square (n²)
1,051,629,740,100
Cube (n³)
1,078,435,782,175,149,000
Divisor count
16
σ(n) — sum of divisors
2,461,248
φ(n) — Euler's totient
273,456
Sum of prime factors
34,193

Primality

Prime factorization: 2 × 3 × 5 × 34183

Nearest primes: 1,025,483 (−7) · 1,025,503 (+13)

Divisors & multiples

All divisors (16)
1 · 2 · 3 · 5 · 6 · 10 · 15 · 30 · 34183 · 68366 · 102549 · 170915 · 205098 · 341830 · 512745 (half) · 1025490
Aliquot sum (sum of proper divisors): 1,435,758
Factor pairs (a × b = 1,025,490)
1 × 1025490
2 × 512745
3 × 341830
5 × 205098
6 × 170915
10 × 102549
15 × 68366
30 × 34183
First multiples
1,025,490 · 2,050,980 (double) · 3,076,470 · 4,101,960 · 5,127,450 · 6,152,940 · 7,178,430 · 8,203,920 · 9,229,410 · 10,254,900

Sums & aliquot sequence

As consecutive integers: 341,829 + 341,830 + 341,831 256,371 + 256,372 + 256,373 + 256,374 205,096 + 205,097 + 205,098 + 205,099 + 205,100 85,452 + 85,453 + … + 85,463
Aliquot sequence: 1,025,490 1,435,758 1,449,618 1,449,630 3,388,770 7,946,910 13,423,626 15,660,936 26,936,424 46,016,586 96,999,606 148,417,434 224,351,622 313,436,538 365,676,000 872,180,256 1,537,796,544 — unresolved within range

Continued fraction of √n

√1,025,490 = [1012; (1, 1, 1, 58, 1, 9, 5, 6, 1, 4, 3, 7, 3, 43, 1, 2, 2, 4, 2, 4, 1, 2, 1, 2, …)]

Representations

In words
one million twenty-five thousand four hundred ninety
Ordinal
1025490th
Binary
11111010010111010010
Octal
3722722
Hexadecimal
0xFA5D2
Base64
D6XS
One's complement
4,293,941,805 (32-bit)
Scientific notation
1.02549 × 10⁶
As a duration
1,025,490 s = 11 days, 20 hours, 51 minutes, 30 seconds
In other bases
ternary (3) 1221002201010
quaternary (4) 3322113102
quinary (5) 230303430
senary (6) 33551350
septenary (7) 11500524
nonary (9) 1832633
undecimal (11) 640514
duodecimal (12) 415556
tridecimal (13) 29b9cb
tetradecimal (14) 1c9a14
pentadecimal (15) 153cb0

As an angle

1,025,490° = 2,848 × 360° + 210°
210° ≈ 3.665 rad
Compass bearing: SSW (south-southwest)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹 𒌋𒌋𒌋
Egyptian hieroglyphic
𓁨𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆
Chinese
一百零二萬五千四百九十
Chinese (financial)
壹佰零貳萬伍仟肆佰玖拾
In other modern scripts
Eastern Arabic ١٠٢٥٤٩٠ Devanagari १०२५४९० Bengali ১০২৫৪৯০ Tamil ௧௦௨௫௪௯௦ Thai ๑๐๒๕๔๙๐ Tibetan ༡༠༢༥༤༩༠ Khmer ១០២៥៤៩០ Lao ໑໐໒໕໔໙໐ Burmese ၁၀၂၅၄၉၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1025490, here are decompositions:

  • 7 + 1025483 = 1025490
  • 13 + 1025477 = 1025490
  • 31 + 1025459 = 1025490
  • 47 + 1025443 = 1025490
  • 71 + 1025419 = 1025490
  • 73 + 1025417 = 1025490
  • 83 + 1025407 = 1025490
  • 97 + 1025393 = 1025490

Showing the first eight; more decompositions exist.

Hex color
#0FA5D2
RGB(15, 165, 210)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.165.210.

Address
0.15.165.210
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.165.210

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

Possible date

Could be parsed as a date. Most likely interpretation: Thursday, January 2, 5490 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)
  • 5490-02-01 (DMMYYYY (Euro, single-digit day))
  • 5490-10-02 (MMDYYYY (US, single-digit day))
  • 5490-02-10 (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 1,025,490 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°.