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172,016

172,016 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.).

172,016 (one hundred seventy-two thousand sixteen) is an even 6-digit number. It is a composite number with 20 divisors, and factors as 2⁴ × 13 × 827. Its proper divisors sum to 187,336, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x29FF0.

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

Interestingness

Properties

Parity
Even
Digit count
6
Digit sum
17
Digit product
0
Digital root
8
Palindrome
No
Bit width
18 bits
Reversed
610,271
Recamán's sequence
a(191,732) = 172,016
Square (n²)
29,589,504,256
Cube (n³)
5,089,868,164,100,096
Divisor count
20
σ(n) — sum of divisors
359,352
φ(n) — Euler's totient
79,296
Sum of prime factors
848

Primality

Prime factorization: 2 4 × 13 × 827

Nearest primes: 172,009 (−7) · 172,021 (+5)

Divisors & multiples

All divisors (20)
1 · 2 · 4 · 8 · 13 · 16 · 26 · 52 · 104 · 208 · 827 · 1654 · 3308 · 6616 · 10751 · 13232 · 21502 · 43004 · 86008 (half) · 172016
Aliquot sum (sum of proper divisors): 187,336
Factor pairs (a × b = 172,016)
1 × 172016
2 × 86008
4 × 43004
8 × 21502
13 × 13232
16 × 10751
26 × 6616
52 × 3308
104 × 1654
208 × 827
First multiples
172,016 · 344,032 (double) · 516,048 · 688,064 · 860,080 · 1,032,096 · 1,204,112 · 1,376,128 · 1,548,144 · 1,720,160

Sums & aliquot sequence

As consecutive integers: 13,226 + 13,227 + … + 13,238 5,360 + 5,361 + … + 5,391 206 + 207 + … + 621
Aliquot sequence: 172,016 187,336 163,934 81,970 86,798 43,402 21,704 19,006 14,258 7,132 5,356 4,836 7,708 6,404 4,810 4,766 2,386 — unresolved within range

Continued fraction of √n

√172,016 = [414; (1, 2, 1, 32, 2, 3, 14, 1, 3, 1, 7, 1, 14, 5, 8, 1, 1, 6, 1, 4, 3, 6, 1, 1, …)]

Representations

In words
one hundred seventy-two thousand sixteen
Ordinal
172016th
Binary
101001111111110000
Octal
517760
Hexadecimal
0x29FF0
Base64
Ap/w
One's complement
4,294,795,279 (32-bit)
Scientific notation
1.72016 × 10⁵
As a duration
172,016 s = 1 day, 23 hours, 46 minutes, 56 seconds
In other bases
ternary (3) 22201221222
quaternary (4) 221333300
quinary (5) 21001031
senary (6) 3404212
septenary (7) 1314335
nonary (9) 281858
undecimal (11) 108269
duodecimal (12) 83668
tridecimal (13) 603b0
tetradecimal (14) 4698c
pentadecimal (15) 35e7b

As an angle

172,016° = 477 × 360° + 296°
296° ≈ 5.166 rad
Compass bearing: WNW (west-northwest)

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓎆𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian)
͵ροβιϛʹ
Chinese
一十七萬二千零一十六
Chinese (financial)
壹拾柒萬貳仟零壹拾陸
In other modern scripts
Eastern Arabic ١٧٢٠١٦ Devanagari १७२०१६ Bengali ১৭২০১৬ Tamil ௧௭௨௦௧௬ Thai ๑๗๒๐๑๖ Tibetan ༡༧༢༠༡༦ Khmer ១៧២០១៦ Lao ໑໗໒໐໑໖ Burmese ၁၇၂၀၁၆

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 172016, here are decompositions:

  • 7 + 172009 = 172016
  • 79 + 171937 = 172016
  • 127 + 171889 = 172016
  • 139 + 171877 = 172016
  • 193 + 171823 = 172016
  • 223 + 171793 = 172016
  • 283 + 171733 = 172016
  • 337 + 171679 = 172016

Showing the first eight; more decompositions exist.

Unicode codepoint
𩿰
CJK Unified Ideograph-29Ff0
U+29FF0
Other letter (Lo)

UTF-8 encoding: F0 A9 BF B0 (4 bytes).

Hex color
#029FF0
RGB(2, 159, 240)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.2.159.240.

Address
0.2.159.240
Class
reserved
IPv4-mapped IPv6
::ffff:0.2.159.240

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 172,016 and was likely granted around 1874.

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°.