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1,022,520

1,022,520 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.).

1,022,520 (one million twenty-two thousand five hundred twenty) is an even 7-digit number. It is a composite number with 32 divisors, and factors as 2³ × 3 × 5 × 8,521. Its proper divisors sum to 2,045,400, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0xF9A38.

Abundant Number Gapful Number Harshad / Niven Odious Number Pernicious Number Recamán's Sequence 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
252,201
Recamán's sequence
a(371,287) = 1,022,520
Square (n²)
1,045,547,150,400
Cube (n³)
1,069,092,872,227,008,000
Divisor count
32
σ(n) — sum of divisors
3,067,920
φ(n) — Euler's totient
272,640
Sum of prime factors
8,535

Primality

Prime factorization: 2 3 × 3 × 5 × 8521

Nearest primes: 1,022,519 (−1) · 1,022,531 (+11)

Divisors & multiples

All divisors (32)
1 · 2 · 3 · 4 · 5 · 6 · 8 · 10 · 12 · 15 · 20 · 24 · 30 · 40 · 60 · 120 · 8521 · 17042 · 25563 · 34084 · 42605 · 51126 · 68168 · 85210 · 102252 · 127815 · 170420 · 204504 · 255630 · 340840 · 511260 (half) · 1022520
Aliquot sum (sum of proper divisors): 2,045,400
Factor pairs (a × b = 1,022,520)
1 × 1022520
2 × 511260
3 × 340840
4 × 255630
5 × 204504
6 × 170420
8 × 127815
10 × 102252
12 × 85210
15 × 68168
20 × 51126
24 × 42605
30 × 34084
40 × 25563
60 × 17042
120 × 8521
First multiples
1,022,520 · 2,045,040 (double) · 3,067,560 · 4,090,080 · 5,112,600 · 6,135,120 · 7,157,640 · 8,180,160 · 9,202,680 · 10,225,200

Sums & aliquot sequence

As consecutive integers: 340,839 + 340,840 + 340,841 204,502 + 204,503 + 204,504 + 204,505 + 204,506 68,161 + 68,162 + … + 68,175 63,900 + 63,901 + … + 63,915
Aliquot sequence: 1,022,520 2,045,400 5,216,040 11,737,260 24,154,596 37,054,188 57,746,700 150,781,620 309,789,708 455,573,604 653,649,756 924,034,212 1,423,474,588 1,094,746,292 845,661,646 422,830,826 307,491,094 — unresolved within range

Continued fraction of √n

√1,022,520 = [1011; (5, 14, 1, 2, 28, 6, 1, 25, 1, 3, 23, 1, 4, 1, 2, 13, 1, 1, 2, 6, 1, 4, 1, 2, …)]

Representations

In words
one million twenty-two thousand five hundred twenty
Ordinal
1022520th
Binary
11111001101000111000
Octal
3715070
Hexadecimal
0xF9A38
Base64
D5o4
One's complement
4,293,944,775 (32-bit)
Scientific notation
1.02252 × 10⁶
As a duration
1,022,520 s = 11 days, 20 hours, 2 minutes
In other bases
ternary (3) 1220221122010
quaternary (4) 3321220320
quinary (5) 230210040
senary (6) 33525520
septenary (7) 11456052
nonary (9) 1827563
undecimal (11) 639264
duodecimal (12) 4138a0
tridecimal (13) 29a555
tetradecimal (14) 1c88d2
pentadecimal (15) 152e80

As an angle

1,022,520° = 2,840 × 360° + 120°
120° ≈ 2.094 rad
Compass bearing: ESE (east-southeast)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹 𒁹𒁹 ·
Egyptian hieroglyphic
𓁨𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓎆𓎆
Chinese
一百零二萬二千五百二十
Chinese (financial)
壹佰零貳萬貳仟伍佰貳拾
In other modern scripts
Eastern Arabic ١٠٢٢٥٢٠ Devanagari १०२२५२० Bengali ১০২২৫২০ Tamil ௧௦௨௨௫௨௦ Thai ๑๐๒๒๕๒๐ Tibetan ༡༠༢༢༥༢༠ Khmer ១០២២៥២០ Lao ໑໐໒໒໕໒໐ Burmese ၁၀၂၂၅၂၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 1022520, here are decompositions:

  • 7 + 1022513 = 1022520
  • 11 + 1022509 = 1022520
  • 13 + 1022507 = 1022520
  • 17 + 1022503 = 1022520
  • 19 + 1022501 = 1022520
  • 29 + 1022491 = 1022520
  • 53 + 1022467 = 1022520
  • 71 + 1022449 = 1022520

Showing the first eight; more decompositions exist.

Hex color
#0F9A38
RGB(15, 154, 56)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.15.154.56.

Address
0.15.154.56
Class
reserved
IPv4-mapped IPv6
::ffff:0.15.154.56

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

Possible date

Could be parsed as a date. Most likely interpretation: Tuesday, January 2, 2520 (MDDYYYY (US, single-digit month)).

Other possible interpretations (3)
  • 2520-02-01 (DMMYYYY (Euro, single-digit day))
  • 2520-10-02 (MMDYYYY (US, single-digit day))
  • 2520-02-10 (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 1,022,520 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 1022520 first appears in π at position 325,459 of the decimal expansion (the 325,459ordinal-suffix:th 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°.