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521,112

521,112 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.).

521,112 (five hundred twenty-one thousand one hundred twelve) is an even 6-digit number. It is a composite number with 16 divisors, and factors as 2³ × 3 × 21,713. Its proper divisors sum to 781,728, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x7F398.

Abundant Number Evil Number Harshad / Niven Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
6
Digit sum
12
Digit product
20
Digital root
3
Palindrome
No
Bit width
19 bits
Reversed
211,125
Square (n²)
271,557,716,544
Cube (n³)
141,511,984,783,676,928
Divisor count
16
σ(n) — sum of divisors
1,302,840
φ(n) — Euler's totient
173,696
Sum of prime factors
21,722

Primality

Prime factorization: 2 3 × 3 × 21713

Nearest primes: 521,107 (−5) · 521,119 (+7)

Divisors & multiples

All divisors (16)
1 · 2 · 3 · 4 · 6 · 8 · 12 · 24 · 21713 · 43426 · 65139 · 86852 · 130278 · 173704 · 260556 (half) · 521112
Aliquot sum (sum of proper divisors): 781,728
Factor pairs (a × b = 521,112)
1 × 521112
2 × 260556
3 × 173704
4 × 130278
6 × 86852
8 × 65139
12 × 43426
24 × 21713
First multiples
521,112 · 1,042,224 (double) · 1,563,336 · 2,084,448 · 2,605,560 · 3,126,672 · 3,647,784 · 4,168,896 · 4,690,008 · 5,211,120

Sums & aliquot sequence

As consecutive integers: 173,703 + 173,704 + 173,705 32,562 + 32,563 + … + 32,577 10,833 + 10,834 + … + 10,880
Aliquot sequence: 521,112 781,728 1,395,552 2,268,024 4,056,456 6,084,744 9,127,176 13,690,824 25,707,576 38,561,424 70,955,376 112,346,136 249,957,864 479,088,636 736,713,588 1,124,692,140 2,655,065,940 — unresolved within range

Continued fraction of √n

√521,112 = [721; (1, 7, 2, 1, 1, 6, 1, 7, 1, 2, 1, 1, 1, 3, 1, 42, 1, 28, 2, 19, 3, 2, 62, 2, …)]

Representations

In words
five hundred twenty-one thousand one hundred twelve
Ordinal
521112th
Binary
1111111001110011000
Octal
1771630
Hexadecimal
0x7F398
Base64
B/OY
One's complement
4,294,446,183 (32-bit)
Scientific notation
5.21112 × 10⁵
As a duration
521,112 s = 6 days, 45 minutes, 12 seconds
In other bases
ternary (3) 222110211110
quaternary (4) 1333032120
quinary (5) 113133422
senary (6) 15100320
septenary (7) 4300164
nonary (9) 873743
undecimal (11) 326579
duodecimal (12) 2116a0
tridecimal (13) 153267
tetradecimal (14) d7ca4
pentadecimal (15) a460c

As an angle

521,112° = 1,447 × 360° + 192°
192° ≈ 3.351 rad
Compass bearing: SSW (south-southwest)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒁹𒁹
Egyptian hieroglyphic
𓆐𓆐𓆐𓆐𓆐𓂍𓂍𓆼𓍢𓎆𓏺𓏺
Greek (Milesian)
͵φκαριβʹ
Chinese
五十二萬一千一百一十二
Chinese (financial)
伍拾貳萬壹仟壹佰壹拾貳
In other modern scripts
Eastern Arabic ٥٢١١١٢ Devanagari ५२१११२ Bengali ৫২১১১২ Tamil ௫௨௧௧௧௨ Thai ๕๒๑๑๑๒ Tibetan ༥༢༡༡༡༢ Khmer ៥២១១១២ Lao ໕໒໑໑໑໒ Burmese ၅၂၁၁၁၂

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 521112, here are decompositions:

  • 5 + 521107 = 521112
  • 61 + 521051 = 521112
  • 71 + 521041 = 521112
  • 73 + 521039 = 521112
  • 89 + 521023 = 521112
  • 103 + 521009 = 521112
  • 131 + 520981 = 521112
  • 149 + 520963 = 521112

Showing the first eight; more decompositions exist.

Hex color
#07F398
RGB(7, 243, 152)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.7.243.152.

Address
0.7.243.152
Class
reserved
IPv4-mapped IPv6
::ffff:0.7.243.152

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

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 521,112 and was likely granted around 1894.

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°.