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472,840

472,840 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.).

472,840 (four hundred seventy-two thousand eight hundred forty) is an even 6-digit number. It is a composite number with 16 divisors, and factors as 2³ × 5 × 11,821. Its proper divisors sum to 591,140, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x73708.

Abundant Number Gapful Number Odious Number Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
6
Digit sum
25
Digit product
0
Digital root
7
Palindrome
No
Bit width
19 bits
Reversed
48,274
Square (n²)
223,577,665,600
Cube (n³)
105,716,463,402,304,000
Divisor count
16
σ(n) — sum of divisors
1,063,980
φ(n) — Euler's totient
189,120
Sum of prime factors
11,832

Primality

Prime factorization: 2 3 × 5 × 11821

Nearest primes: 472,837 (−3) · 472,847 (+7)

Divisors & multiples

All divisors (16)
1 · 2 · 4 · 5 · 8 · 10 · 20 · 40 · 11821 · 23642 · 47284 · 59105 · 94568 · 118210 · 236420 (half) · 472840
Aliquot sum (sum of proper divisors): 591,140
Factor pairs (a × b = 472,840)
1 × 472840
2 × 236420
4 × 118210
5 × 94568
8 × 59105
10 × 47284
20 × 23642
40 × 11821
First multiples
472,840 · 945,680 (double) · 1,418,520 · 1,891,360 · 2,364,200 · 2,837,040 · 3,309,880 · 3,782,720 · 4,255,560 · 4,728,400

Sums & aliquot sequence

As a sum of two squares: 186² + 662² = 418² + 546²
As consecutive integers: 94,566 + 94,567 + 94,568 + 94,569 + 94,570 29,545 + 29,546 + … + 29,560 5,871 + 5,872 + … + 5,950
Aliquot sequence: 472,840 591,140 763,612 578,988 935,448 1,403,232 2,370,720 5,794,080 12,458,784 23,526,816 38,231,328 63,145,248 110,093,664 178,902,456 268,353,744 425,551,248 765,401,606 — unresolved within range

Continued fraction of √n

√472,840 = [687; (1, 1, 1, 2, 1, 2, 3, 2, 6, 2, 9, 1, 2, 1, 1, 1, 1, 2, 1, 1, 34, 1, 2, 6, …)]

Representations

In words
four hundred seventy-two thousand eight hundred forty
Ordinal
472840th
Binary
1110011011100001000
Octal
1633410
Hexadecimal
0x73708
Base64
BzcI
One's complement
4,294,494,455 (32-bit)
Scientific notation
4.7284 × 10⁵
As a duration
472,840 s = 5 days, 11 hours, 20 minutes, 40 seconds
In other bases
ternary (3) 220000121121
quaternary (4) 1303130020
quinary (5) 110112330
senary (6) 14045024
septenary (7) 4006354
nonary (9) 800547
undecimal (11) 2a3285
duodecimal (12) 1a9774
tridecimal (13) 1372b4
tetradecimal (14) c4464
pentadecimal (15) 9517a

As an angle

472,840° = 1,313 × 360° + 160°
160° ≈ 2.793 rad
Compass bearing: SSE (south-southeast)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹 𒌋𒁹 𒌋𒌋 𒌋𒌋𒌋𒌋
Egyptian hieroglyphic
𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆
Greek (Milesian)
͵υοβωμʹ
Chinese
四十七萬二千八百四十
Chinese (financial)
肆拾柒萬貳仟捌佰肆拾
In other modern scripts
Eastern Arabic ٤٧٢٨٤٠ Devanagari ४७२८४० Bengali ৪৭২৮৪০ Tamil ௪௭௨௮௪௦ Thai ๔๗๒๘๔๐ Tibetan ༤༧༢༨༤༠ Khmer ៤៧២៨៤០ Lao ໔໗໒໘໔໐ Burmese ၄၇၂၈၄၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 472840, here are decompositions:

  • 3 + 472837 = 472840
  • 23 + 472817 = 472840
  • 41 + 472799 = 472840
  • 47 + 472793 = 472840
  • 89 + 472751 = 472840
  • 131 + 472709 = 472840
  • 149 + 472691 = 472840
  • 197 + 472643 = 472840

Showing the first eight; more decompositions exist.

Hex color
#073708
RGB(7, 55, 8)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.7.55.8.

Address
0.7.55.8
Class
reserved
IPv4-mapped IPv6
::ffff:0.7.55.8

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 472,840 and was likely granted around 1891.

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

Position in π

The digit sequence 472840 first appears in π at position 277,227 of the decimal expansion (the 277,227ordinal-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°.