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172,744

172,744 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.).

172,744 (one hundred seventy-two thousand seven hundred forty-four) is an even 6-digit number. It is a composite number with 32 divisors, and factors as 2³ × 11 × 13 × 151. Its proper divisors sum to 210,296, more than the number itself, making it an abundant number. Written other ways, in hexadecimal, 0x2A2C8.

Abundant Number Arithmetic Number Odious Number Pernicious Number Practical Number Semiperfect Number

Interestingness

Properties

Parity
Even
Digit count
6
Digit sum
25
Digit product
1,568
Digital root
7
Palindrome
No
Bit width
18 bits
Reversed
447,271
Square (n²)
29,840,489,536
Cube (n³)
5,154,765,524,406,784
Divisor count
32
σ(n) — sum of divisors
383,040
φ(n) — Euler's totient
72,000
Sum of prime factors
181

Primality

Prime factorization: 2 3 × 11 × 13 × 151

Nearest primes: 172,741 (−3) · 172,751 (+7)

Divisors & multiples

All divisors (32)
1 · 2 · 4 · 8 · 11 · 13 · 22 · 26 · 44 · 52 · 88 · 104 · 143 · 151 · 286 · 302 · 572 · 604 · 1144 · 1208 · 1661 · 1963 · 3322 · 3926 · 6644 · 7852 · 13288 · 15704 · 21593 · 43186 · 86372 (half) · 172744
Aliquot sum (sum of proper divisors): 210,296
Factor pairs (a × b = 172,744)
1 × 172744
2 × 86372
4 × 43186
8 × 21593
11 × 15704
13 × 13288
22 × 7852
26 × 6644
44 × 3926
52 × 3322
88 × 1963
104 × 1661
143 × 1208
151 × 1144
286 × 604
302 × 572
First multiples
172,744 · 345,488 (double) · 518,232 · 690,976 · 863,720 · 1,036,464 · 1,209,208 · 1,381,952 · 1,554,696 · 1,727,440

Sums & aliquot sequence

As a sum of two cubes: 41³ + 47³
As consecutive integers: 15,699 + 15,700 + … + 15,709 13,282 + 13,283 + … + 13,294 10,789 + 10,790 + … + 10,804 1,137 + 1,138 + … + 1,279
Aliquot sequence: 172,744 210,296 189,544 206,456 185,584 225,600 530,304 879,336 1,734,264 4,102,536 6,374,904 9,562,416 15,488,064 30,049,056 58,332,006 68,054,046 68,223,858 — unresolved within range

Continued fraction of √n

√172,744 = [415; (1, 1, 1, 1, 1, 91, 1, 2, 1, 3, 1, 2, 1, 9, 1, 1, 9, 33, 6, 1, 8, 1, 2, 3, …)]

Representations

In words
one hundred seventy-two thousand seven hundred forty-four
Ordinal
172744th
Binary
101010001011001000
Octal
521310
Hexadecimal
0x2A2C8
Base64
AqLI
One's complement
4,294,794,551 (32-bit)
Scientific notation
1.72744 × 10⁵
As a duration
172,744 s = 1 day, 23 hours, 59 minutes, 4 seconds
In other bases
ternary (3) 22202221221
quaternary (4) 222023020
quinary (5) 21011434
senary (6) 3411424
septenary (7) 1316425
nonary (9) 282857
undecimal (11) 108870
duodecimal (12) 83b74
tridecimal (13) 60820
tetradecimal (14) 46d4c
pentadecimal (15) 362b4

As an angle

172,744° = 479 × 360° + 304°
304° ≈ 5.306 rad
Compass bearing: NW (northwest)

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺
Greek (Milesian)
͵ροβψμδʹ
Chinese
一十七萬二千七百四十四
Chinese (financial)
壹拾柒萬貳仟柒佰肆拾肆
In other modern scripts
Eastern Arabic ١٧٢٧٤٤ Devanagari १७२७४४ Bengali ১৭২৭৪৪ Tamil ௧௭௨௭௪௪ Thai ๑๗๒๗๔๔ Tibetan ༡༧༢༧༤༤ Khmer ១៧២៧៤៤ Lao ໑໗໒໗໔໔ Burmese ၁၇၂၇၄၄

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 172744, here are decompositions:

  • 3 + 172741 = 172744
  • 23 + 172721 = 172744
  • 71 + 172673 = 172744
  • 101 + 172643 = 172744
  • 137 + 172607 = 172744
  • 191 + 172553 = 172744
  • 227 + 172517 = 172744
  • 311 + 172433 = 172744

Showing the first eight; more decompositions exist.

Unicode codepoint
𪋈
CJK Unified Ideograph-2A2C8
U+2A2C8
Other letter (Lo)

UTF-8 encoding: F0 AA 8B 88 (4 bytes).

Hex color
#02A2C8
RGB(2, 162, 200)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.2.162.200.

Address
0.2.162.200
Class
reserved
IPv4-mapped IPv6
::ffff:0.2.162.200

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 172,744 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°.