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165,729

165,729 is a composite number, odd.

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.).

165,729 (one hundred sixty-five thousand seven hundred twenty-nine) is an odd 6-digit number. It is a composite number with 4 divisors, and factors as 3 × 55,243. Written other ways, in hexadecimal, 0x28761.

Arithmetic Number Cube-Free Deficient Number Evil Number Semiprime Squarefree

Interestingness

Properties

Parity
Odd
Digit count
6
Digit sum
30
Digit product
3,780
Digital root
3
Palindrome
No
Bit width
18 bits
Reversed
927,561
Square (n²)
27,466,101,441
Cube (n³)
4,551,929,525,715,489
Divisor count
4
σ(n) — sum of divisors
220,976
φ(n) — Euler's totient
110,484
Sum of prime factors
55,246

Primality

Prime factorization: 3 × 55243

Nearest primes: 165,721 (−8) · 165,749 (+20)

Divisors & multiples

All divisors (4)
1 · 3 · 55243 · 165729
Aliquot sum (sum of proper divisors): 55,247
Factor pairs (a × b = 165,729)
1 × 165729
3 × 55243
First multiples
165,729 · 331,458 (double) · 497,187 · 662,916 · 828,645 · 994,374 · 1,160,103 · 1,325,832 · 1,491,561 · 1,657,290

Sums & aliquot sequence

As consecutive integers: 82,864 + 82,865 55,242 + 55,243 + 55,244 27,619 + 27,620 + 27,621 + 27,622 + 27,623 + 27,624
Aliquot sequence: 165,729 55,247 649 71 1 0 — terminates at zero

Continued fraction of √n

√165,729 = [407; (10, 5, 1, 2, 13, 1, 13, 1, 1, 1, 1, 3, 1, 8, 1, 1, 2, 1, 3, 1, 10, 14, 1, 2, …)]

Representations

In words
one hundred sixty-five thousand seven hundred twenty-nine
Ordinal
165729th
Binary
101000011101100001
Octal
503541
Hexadecimal
0x28761
Base64
Aodh
One's complement
4,294,801,566 (32-bit)
Scientific notation
1.65729 × 10⁵
As a duration
165,729 s = 1 day, 22 hours, 2 minutes, 9 seconds
In other bases
ternary (3) 22102100010
quaternary (4) 220131201
quinary (5) 20300404
senary (6) 3315133
septenary (7) 1260114
nonary (9) 272303
undecimal (11) 103573
duodecimal (12) 7baa9
tridecimal (13) 5a585
tetradecimal (14) 4457b
pentadecimal (15) 34189
Palindromic in base 6

As an angle

165,729° = 460 × 360° + 129°
129° ≈ 2.251 rad
Compass bearing: SE (southeast)

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒁹𒁹 𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian)
͵ρξεψκθʹ
Chinese
一十六萬五千七百二十九
Chinese (financial)
壹拾陸萬伍仟柒佰貳拾玖
In other modern scripts
Eastern Arabic ١٦٥٧٢٩ Devanagari १६५७२९ Bengali ১৬৫৭২৯ Tamil ௧௬௫௭௨௯ Thai ๑๖๕๗๒๙ Tibetan ༡༦༥༧༢༩ Khmer ១៦៥៧២៩ Lao ໑໖໕໗໒໙ Burmese ၁၆၅၇၂၉

Also seen as

Unicode codepoint
𨝡
CJK Unified Ideograph-28761
U+28761
Other letter (Lo)

UTF-8 encoding: F0 A8 9D A1 (4 bytes).

Hex color
#028761
RGB(2, 135, 97)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.2.135.97.

Address
0.2.135.97
Class
reserved
IPv4-mapped IPv6
::ffff:0.2.135.97

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 165,729 and was likely granted around 1874.

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

Position in π

The digit sequence 165729 first appears in π at position 180,380 of the decimal expansion (the 180,380ordinal-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