Live analysis

1,022,440

1,022,440 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.).

1,022,440 (one million twenty-two thousand four hundred forty) is an even 7-digit number. It is a composite number with 16 divisors, and factors as 2³ × 5 × 25,561. Its proper divisors sum to 1,278,140, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xF99E8.

Abundant Number Evil Number Gapful Number Recamán's Sequence Self Number Semiperfect Number

Interestingness

★ ★ ☆ ☆ ☆

4 notable facts · grade D

1,022,428 1,022,429 1,022,430 1,022,431 1,022,432 1,022,433 1,022,434 1,022,435 1,022,436 1,022,437 1,022,438 1,022,439 1,022,440 1,022,441 1,022,442 1,022,443 1,022,444 1,022,445 1,022,446 1,022,447 1,022,448 1,022,449 1,022,450 1,022,451 1,022,452

less more

Properties

Parity: Even
Digit count: 7
Digit sum: 13
Digit product: 0
Digital root: 4
Palindrome: No
Bit width: 20 bits
Reversed: 442,201
Recamán's sequence: a(371,447) = 1,022,440
Square (n²): 1,045,383,553,600
Cube (n³): 1,068,841,960,542,784,000
Divisor count: 16
σ(n) — sum of divisors: 2,300,580
φ(n) — Euler's totient: 408,960
Sum of prime factors: 25,572

Primality

Prime factorization: 2 ³ × 5 × 25561

Nearest primes: 1,022,429 (−11) · 1,022,443 (+3)

Divisors & multiples

All divisors (16)

1 · 2 · 4 · 5 · 8 · 10 · 20 · 40 · 25561 · 51122 · 102244 · 127805 · 204488 · 255610 · 511220 (half) · 1022440

Aliquot sum (sum of proper divisors): 1,278,140

Factor pairs (a × b = 1,022,440)

1 × 1022440

2 × 511220

4 × 255610

5 × 204488

8 × 127805

10 × 102244

20 × 51122

40 × 25561

First multiples

1,022,440 · 2,044,880 (double) · 3,067,320 · 4,089,760 · 5,112,200 · 6,134,640 · 7,157,080 · 8,179,520 · 9,201,960 · 10,224,400

Sums & aliquot sequence

As a sum of two squares: 102² + 1,006² = 522² + 866²

As consecutive integers: 204,486 + 204,487 + 204,488 + 204,489 + 204,490 63,895 + 63,896 + … + 63,910 12,741 + 12,742 + … + 12,820

Aliquot sequence: 1,022,440 → 1,278,140 → 1,405,996 → 1,064,556 → 1,695,684 → 2,260,940 → 3,061,300 → 4,563,212 → 3,422,416 → 3,208,546 → 2,607,902 → 2,161,378 → 1,087,262 → 718,930 → 651,590 → 572,698 → 461,222 — unresolved within range

Continued fraction of √n

√1,022,440 = [1011; (6, 2, 1, 18, 1, 3, 5, 2, 1, 2, 1, 11, 4, 4, 1, 3, 1, 24, 5, 1, 2, 1, 1, 2, …)]

Representations

In words: one million twenty-two thousand four hundred forty
Ordinal: 1022440th
Binary: 11111001100111101000
Octal: 3714750
Hexadecimal: 0xF99E8
Base64: D5no
One's complement: 4,293,944,855 (32-bit)
Scientific notation: 1.02244 × 10⁶
As a duration: 1,022,440 s = 11 days, 20 hours, 40 seconds

In other bases

ternary (3) 1220221112011

quaternary (4) 3321213220

quinary (5) 230204230

senary (6) 33525304

septenary (7) 11455606

nonary (9) 1827464

undecimal (11) 6391a1

duodecimal (12) 413834

tridecimal (13) 29a4c3

tetradecimal (14) 1c8876

pentadecimal (15) 152e2a

As an angle

1,022,440° = 2,840 × 360° + 40°

40° ≈ 0.698 rad

Compass bearing: NE (northeast)

Why does a circle have 360 degrees? →

Historical numeral systems

Babylonian (base 60): 𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹 · 𒌋𒌋𒌋𒌋
Egyptian hieroglyphic: 𓁨𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆
Chinese: 一百零二萬二千四百四十
Chinese (financial): 壹佰零貳萬貳仟肆佰肆拾

In other modern scripts

Eastern Arabic ١٠٢٢٤٤٠ Devanagari १०२२४४० Bengali ১০২২৪৪০ Tamil ௧௦௨௨௪௪௦ Thai ๑๐๒๒๔๔๐ Tibetan ༡༠༢༢༤༤༠ Khmer ១០២២៤៤០ Lao ໑໐໒໒໔໔໐ Burmese ၁၀၂၂၄၄၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1022440, here are decompositions:

11 + 1022429 = 1022440
53 + 1022387 = 1022440
59 + 1022381 = 1022440
137 + 1022303 = 1022440
149 + 1022291 = 1022440
191 + 1022249 = 1022440
197 + 1022243 = 1022440
239 + 1022201 = 1022440

Showing the first eight; more decompositions exist.

Hex color

#0F99E8

RGB(15, 153, 232)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.153.232.

Address: 0.15.153.232
Class: reserved
IPv4-mapped IPv6: ::ffff:0.15.153.232

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

Possible date

Could be parsed as a date. Most likely interpretation: Monday, January 2, 2440 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)

2440-02-01 (DMMYYYY (Euro, single-digit day))
2440-10-02 (MMDYYYY (US, single-digit day))
2440-02-10 (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 1,022,440 and was likely granted around 1912.

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

Look up US1,022,440 on Google Patents ↗ Look up on USPTO ↗