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188,480

188,480 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.).

188,480 (one hundred eighty-eight thousand four hundred eighty) is an even 6-digit number. It is a composite number with 56 divisors, and factors as 2⁶ × 5 × 19 × 31. Its proper divisors sum to 299,200, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x2E040.

Abundant Number Gapful Number Odious Number Pernicious Number Practical Number Recamán's Sequence Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
6
Digit sum
29
Digit product
0
Digital root
2
Palindrome
No
Bit width
18 bits
Reversed
84,881
Recamán's sequence
a(75,112) = 188,480
Square (n²)
35,524,710,400
Cube (n³)
6,695,697,416,192,000
Divisor count
56
σ(n) — sum of divisors
487,680
φ(n) — Euler's totient
69,120
Sum of prime factors
67

Primality

Prime factorization: 2 6 × 5 × 19 × 31

Nearest primes: 188,473 (−7) · 188,483 (+3)

Divisors & multiples

All divisors (56)
1 · 2 · 4 · 5 · 8 · 10 · 16 · 19 · 20 · 31 · 32 · 38 · 40 · 62 · 64 · 76 · 80 · 95 · 124 · 152 · 155 · 160 · 190 · 248 · 304 · 310 · 320 · 380 · 496 · 589 · 608 · 620 · 760 · 992 · 1178 · 1216 · 1240 · 1520 · 1984 · 2356 · 2480 · 2945 · 3040 · 4712 · 4960 · 5890 · 6080 · 9424 · 9920 · 11780 · 18848 · 23560 · 37696 · 47120 · 94240 (half) · 188480
Aliquot sum (sum of proper divisors): 299,200
Factor pairs (a × b = 188,480)
1 × 188480
2 × 94240
4 × 47120
5 × 37696
8 × 23560
10 × 18848
16 × 11780
19 × 9920
20 × 9424
31 × 6080
32 × 5890
38 × 4960
40 × 4712
62 × 3040
64 × 2945
76 × 2480
80 × 2356
95 × 1984
124 × 1520
152 × 1240
155 × 1216
160 × 1178
190 × 992
248 × 760
304 × 620
310 × 608
320 × 589
380 × 496
First multiples
188,480 · 376,960 (double) · 565,440 · 753,920 · 942,400 · 1,130,880 · 1,319,360 · 1,507,840 · 1,696,320 · 1,884,800

Sums & aliquot sequence

As consecutive integers: 37,694 + 37,695 + 37,696 + 37,697 + 37,698 9,911 + 9,912 + … + 9,929 6,065 + 6,066 + … + 6,095 1,937 + 1,938 + … + 2,031
Aliquot sequence: 188,480 → 299,200 → 551,192 → 482,308 → 361,738 → 222,650 → 204,034 → 122,000 → 177,832 → 155,618 → 103,582 → 54,314 → 33,466 → 18,554 → 9,280 → 13,580 → 19,348 — unresolved within range

Continued fraction of √n

√188,480 = [434; (7, 868)]

Period length 2 — the block in parentheses repeats forever.

Representations

In words
one hundred eighty-eight thousand four hundred eighty
Ordinal
188480th
Binary
101110000001000000
Octal
560100
Hexadecimal
0x2E040
Base64
AuBA
One's complement
4,294,778,815 (32-bit)
Scientific notation
1.8848 × 10⁵
As a duration
188,480 s = 2 days, 4 hours, 21 minutes, 20 seconds
In other bases
ternary (3) 100120112202
quaternary (4) 232001000
quinary (5) 22012410
senary (6) 4012332
septenary (7) 1413335
nonary (9) 316482
undecimal (11) 119676
duodecimal (12) 910a8
tridecimal (13) 67a36
tetradecimal (14) 4c98c
pentadecimal (15) 3aca5

As an angle

188,480° = 523 × 360° + 200°
200° ≈ 3.491 rad
Compass bearing: SSW (south-southwest)

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒌋𒌋𒌋𒁹𒁹 𒌋𒌋𒁹 𒌋𒌋
Egyptian hieroglyphic
𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆
Greek (Milesian)
͵ρπηυπʹ
Chinese
十八萬八千四百八十
Chinese (financial)
壹拾捌萬捌仟肆佰捌拾
In other modern scripts
Eastern Arabic ١٨٨٤٨٠ Devanagari १८८४८० Bengali ১৮৮৪৮০ Tamil ௧௮௮௪௮௦ Thai ๑๘๘๔๘๐ Tibetan ༡༨༨༤༨༠ Khmer ១៨៨៤៨០ Lao ໑໘໘໔໘໐ Burmese ၁၈၈၄၈၀

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 188480, here are decompositions:

  • 7 + 188473 = 188480
  • 37 + 188443 = 188480
  • 43 + 188437 = 188480
  • 73 + 188407 = 188480
  • 79 + 188401 = 188480
  • 157 + 188323 = 188480
  • 163 + 188317 = 188480
  • 181 + 188299 = 188480

Showing the first eight; more decompositions exist.

Unicode codepoint
𮁀
CJK Unified Ideograph-2E040
U+2E040
Other letter (Lo)

UTF-8 encoding: F0 AE 81 80 (4 bytes).

Hex color
#02E040
RGB(2, 224, 64)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.2.224.64.

Address
0.2.224.64
Class
reserved
IPv4-mapped IPv6
::ffff:0.2.224.64

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 188,480 and was likely granted around 1875.

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°.