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523,428

523,428 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.).

523,428 (five hundred twenty-three thousand four hundred twenty-eight) is an even 6-digit number. It is a composite number with 24 divisors, and factors as 2² × 3 × 53 × 823. Its proper divisors sum to 722,460, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x7FCA4.

Abundant Number Arithmetic Number Cube-Free Evil Number Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
6
Digit sum
24
Digit product
1,920
Digital root
6
Palindrome
No
Bit width
19 bits
Reversed
824,325
Square (n²)
273,976,871,184
Cube (n³)
143,407,165,730,098,752
Divisor count
24
σ(n) — sum of divisors
1,245,888
φ(n) — Euler's totient
170,976
Sum of prime factors
883

Primality

Prime factorization: 2 2 × 3 × 53 × 823

Nearest primes: 523,427 (−1) · 523,433 (+5)

Divisors & multiples

All divisors (24)
1 · 2 · 3 · 4 · 6 · 12 · 53 · 106 · 159 · 212 · 318 · 636 · 823 · 1646 · 2469 · 3292 · 4938 · 9876 · 43619 · 87238 · 130857 · 174476 · 261714 (half) · 523428
Aliquot sum (sum of proper divisors): 722,460
Factor pairs (a × b = 523,428)
1 × 523428
2 × 261714
3 × 174476
4 × 130857
6 × 87238
12 × 43619
53 × 9876
106 × 4938
159 × 3292
212 × 2469
318 × 1646
636 × 823
First multiples
523,428 · 1,046,856 (double) · 1,570,284 · 2,093,712 · 2,617,140 · 3,140,568 · 3,663,996 · 4,187,424 · 4,710,852 · 5,234,280

Sums & aliquot sequence

As consecutive integers: 174,475 + 174,476 + 174,477 65,425 + 65,426 + … + 65,432 21,798 + 21,799 + … + 21,821 9,850 + 9,851 + … + 9,902
Aliquot sequence: 523,428 722,460 1,300,596 2,086,284 2,994,036 3,992,076 7,683,588 13,505,580 33,668,820 68,460,480 188,540,784 367,173,648 710,368,620 1,436,160,660 2,996,079,852 4,069,244,148 5,426,690,412 — unresolved within range

Continued fraction of √n

√523,428 = [723; (2, 14, 2, 2, 1, 1, 9, 1, 1, 6, 1, 2, 14, 1, 2, 1, 1, 1, 1, 1, 2, 1, 2, 1, …)]

Representations

In words
five hundred twenty-three thousand four hundred twenty-eight
Ordinal
523428th
Binary
1111111110010100100
Octal
1776244
Hexadecimal
0x7FCA4
Base64
B/yk
One's complement
4,294,443,867 (32-bit)
Scientific notation
5.23428 × 10⁵
As a duration
523,428 s = 6 days, 1 hour, 23 minutes, 48 seconds
In other bases
ternary (3) 222121000020
quaternary (4) 1333302210
quinary (5) 113222203
senary (6) 15115140
septenary (7) 4310013
nonary (9) 877006
undecimal (11) 328294
duodecimal (12) 212ab0
tridecimal (13) 154329
tetradecimal (14) d8a7a
pentadecimal (15) a5153

Historical numeral systems

Babylonian (base 60)
𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓆐𓆐𓆐𓆐𓆐𓂍𓂍𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian)
͵φκγυκηʹ
Chinese
五十二萬三千四百二十八
Chinese (financial)
伍拾貳萬參仟肆佰貳拾捌
In other modern scripts
Eastern Arabic ٥٢٣٤٢٨ Devanagari ५२३४२८ Bengali ৫২৩৪২৮ Tamil ௫௨௩௪௨௮ Thai ๕๒๓๔๒๘ Tibetan ༥༢༣༤༢༨ Khmer ៥២៣៤២៨ Lao ໕໒໓໔໒໘ Burmese ၅၂၃၄၂၈

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 523428, here are decompositions:

  • 11 + 523417 = 523428
  • 41 + 523387 = 523428
  • 71 + 523357 = 523428
  • 79 + 523349 = 523428
  • 131 + 523297 = 523428
  • 167 + 523261 = 523428
  • 251 + 523177 = 523428
  • 331 + 523097 = 523428

Showing the first eight; more decompositions exist.

Hex color
#07FCA4
RGB(7, 252, 164)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.7.252.164.

Address
0.7.252.164
Class
reserved
IPv4-mapped IPv6
::ffff:0.7.252.164

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 523,428 and was likely granted around 1894.

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

Position in π

The digit sequence 523428 first appears in π at position 340,412 of the decimal expansion (the 340,412ordinal-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°.