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472,720

472,720 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.).

472,720 (four hundred seventy-two thousand seven hundred twenty) is an even 6-digit number. It is a composite number with 40 divisors, and factors as 2⁴ × 5 × 19 × 311. Its proper divisors sum to 687,920, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x73690.

Abundant Number Arithmetic Number Gapful Number Odious Number Practical Number Refactorable Number Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
6
Digit sum
22
Digit product
0
Digital root
4
Palindrome
No
Bit width
19 bits
Reversed
27,274
Square (n²)
223,464,198,400
Cube (n³)
105,635,995,867,648,000
Divisor count
40
σ(n) — sum of divisors
1,160,640
φ(n) — Euler's totient
178,560
Sum of prime factors
343

Primality

Prime factorization: 2 4 × 5 × 19 × 311

Nearest primes: 472,711 (−9) · 472,721 (+1)

Divisors & multiples

All divisors (40)
1 · 2 · 4 · 5 · 8 · 10 · 16 · 19 · 20 · 38 · 40 · 76 · 80 · 95 · 152 · 190 · 304 · 311 · 380 · 622 · 760 · 1244 · 1520 · 1555 · 2488 · 3110 · 4976 · 5909 · 6220 · 11818 · 12440 · 23636 · 24880 · 29545 · 47272 · 59090 · 94544 · 118180 · 236360 (half) · 472720
Aliquot sum (sum of proper divisors): 687,920
Factor pairs (a × b = 472,720)
1 × 472720
2 × 236360
4 × 118180
5 × 94544
8 × 59090
10 × 47272
16 × 29545
19 × 24880
20 × 23636
38 × 12440
40 × 11818
76 × 6220
80 × 5909
95 × 4976
152 × 3110
190 × 2488
304 × 1555
311 × 1520
380 × 1244
622 × 760
First multiples
472,720 · 945,440 (double) · 1,418,160 · 1,890,880 · 2,363,600 · 2,836,320 · 3,309,040 · 3,781,760 · 4,254,480 · 4,727,200

Sums & aliquot sequence

As consecutive integers: 94,542 + 94,543 + 94,544 + 94,545 + 94,546 24,871 + 24,872 + … + 24,889 14,757 + 14,758 + … + 14,788 4,929 + 4,930 + … + 5,023
Aliquot sequence: 472,720 687,920 911,680 1,868,096 2,108,782 1,527,794 763,900 893,980 983,420 1,081,804 811,360 1,284,272 1,430,584 1,470,296 1,607,704 2,021,096 3,007,384 — unresolved within range

Continued fraction of √n

√472,720 = [687; (1, 1, 4, 1, 8, 3, 2, 7, 4, 1, 3, 1, 5, 1, 18, 1, 1, 16, 2, 6, 2, 1, 4, 4, …)]

Period length 50 — the block in parentheses repeats forever.

Representations

In words
four hundred seventy-two thousand seven hundred twenty
Ordinal
472720th
Binary
1110011011010010000
Octal
1633220
Hexadecimal
0x73690
Base64
BzaQ
One's complement
4,294,494,575 (32-bit)
Scientific notation
4.7272 × 10⁵
As a duration
472,720 s = 5 days, 11 hours, 18 minutes, 40 seconds
In other bases
ternary (3) 220000110011
quaternary (4) 1303122100
quinary (5) 110111340
senary (6) 14044304
septenary (7) 4006123
nonary (9) 800404
undecimal (11) 2a3186
duodecimal (12) 1a9694
tridecimal (13) 137221
tetradecimal (14) c43ba
pentadecimal (15) 950ea

As an angle

472,720° = 1,313 × 360° + 40°
40° ≈ 0.698 rad
Compass bearing: NE (northeast)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹 𒌋𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋
Egyptian hieroglyphic
𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆
Greek (Milesian)
͵υοβψκʹ
Chinese
四十七萬二千七百二十
Chinese (financial)
肆拾柒萬貳仟柒佰貳拾
In other modern scripts
Eastern Arabic ٤٧٢٧٢٠ Devanagari ४७२७२० Bengali ৪৭২৭২০ Tamil ௪௭௨௭௨௦ Thai ๔๗๒๗๒๐ Tibetan ༤༧༢༧༢༠ Khmer ៤៧២៧២០ Lao ໔໗໒໗໒໐ Burmese ၄၇၂၇၂၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 472720, here are decompositions:

  • 11 + 472709 = 472720
  • 23 + 472697 = 472720
  • 29 + 472691 = 472720
  • 89 + 472631 = 472720
  • 179 + 472541 = 472720
  • 197 + 472523 = 472720
  • 251 + 472469 = 472720
  • 263 + 472457 = 472720

Showing the first eight; more decompositions exist.

Hex color
#073690
RGB(7, 54, 144)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.7.54.144.

Address
0.7.54.144
Class
reserved
IPv4-mapped IPv6
::ffff:0.7.54.144

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 472,720 and was likely granted around 1891.

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°.