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1,020,402

1,020,402 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.).

1,020,402 (one million twenty thousand four hundred two) is an even 7-digit number. It is a composite number with 24 divisors, and factors as 2 × 3² × 83 × 683. Its proper divisors sum to 1,220,382, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xF91F2.

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

Interestingness

Properties

Parity
Even
Digit count
7
Digit sum
9
Digit product
0
Digital root
9
Palindrome
No
Bit width
20 bits
Reversed
2,040,201
Square (n²)
1,041,220,241,604
Cube (n³)
1,062,463,216,973,204,808
Divisor count
24
σ(n) — sum of divisors
2,240,784
φ(n) — Euler's totient
335,544
Sum of prime factors
774

Primality

Prime factorization: 2 × 3 2 × 83 × 683

Nearest primes: 1,020,401 (−1) · 1,020,407 (+5)

Divisors & multiples

All divisors (24)
1 · 2 · 3 · 6 · 9 · 18 · 83 · 166 · 249 · 498 · 683 · 747 · 1366 · 1494 · 2049 · 4098 · 6147 · 12294 · 56689 · 113378 · 170067 · 340134 · 510201 (half) · 1020402
Aliquot sum (sum of proper divisors): 1,220,382
Factor pairs (a × b = 1,020,402)
1 × 1020402
2 × 510201
3 × 340134
6 × 170067
9 × 113378
18 × 56689
83 × 12294
166 × 6147
249 × 4098
498 × 2049
683 × 1494
747 × 1366
First multiples
1,020,402 · 2,040,804 (double) · 3,061,206 · 4,081,608 · 5,102,010 · 6,122,412 · 7,142,814 · 8,163,216 · 9,183,618 · 10,204,020

Sums & aliquot sequence

As consecutive integers: 340,133 + 340,134 + 340,135 255,099 + 255,100 + 255,101 + 255,102 113,374 + 113,375 + … + 113,382 85,028 + 85,029 + … + 85,039
Aliquot sequence: 1,020,402 1,220,382 1,447,218 1,913,958 2,232,990 3,718,098 4,460,670 7,535,754 9,509,274 11,805,786 15,968,142 18,710,658 21,829,140 44,863,668 68,541,806 37,587,538 20,738,042 — unresolved within range

Continued fraction of √n

√1,020,402 = [1010; (6, 1, 2, 4, 1, 1, 2, 3, 2, 4, 2, 1, 1, 15, 3, 6, 7, 1, 3, 1, 8, 1, 6, 1, …)]

Representations

In words
one million twenty thousand four hundred two
Ordinal
1020402nd
Binary
11111001000111110010
Octal
3710762
Hexadecimal
0xF91F2
Base64
D5Hy
One's complement
4,293,946,893 (32-bit)
Scientific notation
1.020402 × 10⁶
As a duration
1,020,402 s = 11 days, 19 hours, 26 minutes, 42 seconds
In other bases
ternary (3) 1220211201200
quaternary (4) 3321013302
quinary (5) 230123102
senary (6) 33512030
septenary (7) 11446635
nonary (9) 1824650
undecimal (11) 637709
duodecimal (12) 412616
tridecimal (13) 2995b6
tetradecimal (14) 1c7c1c
pentadecimal (15) 15251c

As an angle

1,020,402° = 2,834 × 360° + 162°
162° ≈ 2.827 rad
Compass bearing: SSE (south-southeast)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹
Egyptian hieroglyphic
𓁨𓂍𓂍𓍢𓍢𓍢𓍢𓏺𓏺
Chinese
一百零二萬零四百零二
Chinese (financial)
壹佰零貳萬零肆佰零貳
In other modern scripts
Eastern Arabic ١٠٢٠٤٠٢ Devanagari १०२०४०२ Bengali ১০২০৪০২ Tamil ௧௦௨௦௪௦௨ Thai ๑๐๒๐๔๐๒ Tibetan ༡༠༢༠༤༠༢ Khmer ១០២០៤០២ Lao ໑໐໒໐໔໐໒ Burmese ၁၀၂၀၄၀၂

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1020402, here are decompositions:

  • 13 + 1020389 = 1020402
  • 23 + 1020379 = 1020402
  • 41 + 1020361 = 1020402
  • 73 + 1020329 = 1020402
  • 101 + 1020301 = 1020402
  • 109 + 1020293 = 1020402
  • 179 + 1020223 = 1020402
  • 239 + 1020163 = 1020402

Showing the first eight; more decompositions exist.

Hex color
#0F91F2
RGB(15, 145, 242)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.145.242.

Address
0.15.145.242
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.145.242

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

Possible date

Could be parsed as a date. Most likely interpretation: Wednesday, January 2, 0402 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)
  • 0402-02-01 (DMMYYYY (Euro, single-digit day))
  • 0402-10-02 (MMDYYYY (US, single-digit day))
  • 0402-02-10 (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 1,020,402 and was likely granted around 1911.

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°.