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470,720

470,720 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.).

470,720 (four hundred seventy thousand seven hundred twenty) is an even 6-digit number. It is a composite number with 28 divisors, and factors as 2⁶ × 5 × 1,471. Its proper divisors sum to 650,944, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x72EC0.

Abundant Number Gapful Number Harshad / Niven Odious Number Recamán's Sequence Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
6
Digit sum
20
Digit product
0
Digital root
2
Palindrome
No
Bit width
19 bits
Reversed
27,074
Recamán's sequence
a(135,536) = 470,720
Square (n²)
221,577,318,400
Cube (n³)
104,300,875,317,248,000
Divisor count
28
σ(n) — sum of divisors
1,121,664
φ(n) — Euler's totient
188,160
Sum of prime factors
1,488

Primality

Prime factorization: 2 6 × 5 × 1471

Nearest primes: 470,719 (−1) · 470,731 (+11)

Divisors & multiples

All divisors (28)
1 · 2 · 4 · 5 · 8 · 10 · 16 · 20 · 32 · 40 · 64 · 80 · 160 · 320 · 1471 · 2942 · 5884 · 7355 · 11768 · 14710 · 23536 · 29420 · 47072 · 58840 · 94144 · 117680 · 235360 (half) · 470720
Aliquot sum (sum of proper divisors): 650,944
Factor pairs (a × b = 470,720)
1 × 470720
2 × 235360
4 × 117680
5 × 94144
8 × 58840
10 × 47072
16 × 29420
20 × 23536
32 × 14710
40 × 11768
64 × 7355
80 × 5884
160 × 2942
320 × 1471
First multiples
470,720 · 941,440 (double) · 1,412,160 · 1,882,880 · 2,353,600 · 2,824,320 · 3,295,040 · 3,765,760 · 4,236,480 · 4,707,200

Sums & aliquot sequence

As consecutive integers: 94,142 + 94,143 + 94,144 + 94,145 + 94,146 3,614 + 3,615 + … + 3,741 416 + 417 + … + 1,055
Aliquot sequence: 470,720 650,944 826,320 1,977,072 3,130,488 5,639,592 10,474,008 15,711,072 28,706,448 45,452,000 76,493,824 90,344,864 87,521,650 79,671,890 63,943,918 34,564,394 18,546,874 — unresolved within range

Continued fraction of √n

√470,720 = [686; (11, 15, 3, 16, 1, 4, 1, 3, 44, 343, 44, 3, 1, 4, 1, 16, 3, 15, 11, 1372)]

Period length 20 — the block in parentheses repeats forever.

Representations

In words
four hundred seventy thousand seven hundred twenty
Ordinal
470720th
Binary
1110010111011000000
Octal
1627300
Hexadecimal
0x72EC0
Base64
By7A
One's complement
4,294,496,575 (32-bit)
Scientific notation
4.7072 × 10⁵
As a duration
470,720 s = 5 days, 10 hours, 45 minutes, 20 seconds
In other bases
ternary (3) 212220201002
quaternary (4) 1302323000
quinary (5) 110030340
senary (6) 14031132
septenary (7) 4000235
nonary (9) 786632
undecimal (11) 2a1728
duodecimal (12) 1a84a8
tridecimal (13) 136343
tetradecimal (14) c378c
pentadecimal (15) 94715

As an angle

470,720° = 1,307 × 360° + 200°
200° ≈ 3.491 rad
Compass bearing: SSW (south-southwest)

Historical numeral systems

Babylonian (base 60)
𒁹𒁹 𒌋 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋
Egyptian hieroglyphic
𓆐𓆐𓆐𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆
Greek (Milesian)
͵υοψκʹ
Chinese
四十七萬零七百二十
Chinese (financial)
肆拾柒萬零柒佰貳拾
In other modern scripts
Eastern Arabic ٤٧٠٧٢٠ Devanagari ४७०७२० Bengali ৪৭০৭২০ Tamil ௪௭௦௭௨௦ Thai ๔๗๐๗๒๐ Tibetan ༤༧༠༧༢༠ Khmer ៤៧០៧២០ Lao ໔໗໐໗໒໐ Burmese ၄၇၀၇၂၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 470720, here are decompositions:

  • 31 + 470689 = 470720
  • 67 + 470653 = 470720
  • 73 + 470647 = 470720
  • 127 + 470593 = 470720
  • 181 + 470539 = 470720
  • 199 + 470521 = 470720
  • 277 + 470443 = 470720
  • 307 + 470413 = 470720

Showing the first eight; more decompositions exist.

Hex color
#072EC0
RGB(7, 46, 192)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.7.46.192.

Address
0.7.46.192
Class
reserved
IPv4-mapped IPv6
::ffff:0.7.46.192

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 470,720 and was likely granted around 1891.

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

Position in π

The digit sequence 470720 first appears in π at position 59,476 of the decimal expansion (the 59,476ordinal-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°.