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165,321

165,321 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.).

165,321 (one hundred sixty-five thousand three hundred twenty-one) is an odd 6-digit number. It is a composite number with 20 divisors, and factors as 3⁴ × 13 × 157. Written other ways, in hexadecimal, 0x285C9.

Deficient Number Evil Number

Interestingness

Properties

Parity
Odd
Digit count
6
Digit sum
18
Digit product
180
Digital root
9
Palindrome
No
Bit width
18 bits
Reversed
123,561
Square (n²)
27,331,033,041
Cube (n³)
4,518,393,713,371,161
Divisor count
20
σ(n) — sum of divisors
267,652
φ(n) — Euler's totient
101,088
Sum of prime factors
182

Primality

Prime factorization: 3 4 × 13 × 157

Nearest primes: 165,317 (−4) · 165,331 (+10)

Divisors & multiples

All divisors (20)
1 · 3 · 9 · 13 · 27 · 39 · 81 · 117 · 157 · 351 · 471 · 1053 · 1413 · 2041 · 4239 · 6123 · 12717 · 18369 · 55107 · 165321
Aliquot sum (sum of proper divisors): 102,331
Factor pairs (a × b = 165,321)
1 × 165321
3 × 55107
9 × 18369
13 × 12717
27 × 6123
39 × 4239
81 × 2041
117 × 1413
157 × 1053
351 × 471
First multiples
165,321 · 330,642 (double) · 495,963 · 661,284 · 826,605 · 991,926 · 1,157,247 · 1,322,568 · 1,487,889 · 1,653,210

Sums & aliquot sequence

As a sum of two squares: 36² + 405² = 189² + 360²
As consecutive integers: 82,660 + 82,661 55,106 + 55,107 + 55,108 27,551 + 27,552 + 27,553 + 27,554 + 27,555 + 27,556 18,365 + 18,366 + … + 18,373
Aliquot sequence: 165,321 102,331 3,333 1,563 525 467 1 0 — terminates at zero

Continued fraction of √n

√165,321 = [406; (1, 1, 2, 12, 3, 3, 1, 3, 5, 20, 7, 6, 1, 4, 4, 2, 47, 2, 1, 1, 2, 1, 2, 1, …)]

Representations

In words
one hundred sixty-five thousand three hundred twenty-one
Ordinal
165321st
Binary
101000010111001001
Octal
502711
Hexadecimal
0x285C9
Base64
AoXJ
One's complement
4,294,801,974 (32-bit)
Scientific notation
1.65321 × 10⁵
As a duration
165,321 s = 1 day, 21 hours, 55 minutes, 21 seconds
In other bases
ternary (3) 22101210000
quaternary (4) 220113021
quinary (5) 20242241
senary (6) 3313213
septenary (7) 1255662
nonary (9) 271700
undecimal (11) 103232
duodecimal (12) 7b809
tridecimal (13) 5a330
tetradecimal (14) 44369
pentadecimal (15) 33eb6

As an angle

165,321° = 459 × 360° + 81°
81° ≈ 1.414 rad
Compass bearing: E (east)

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹
Egyptian hieroglyphic
𓆐𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓎆𓎆𓏺
Greek (Milesian)
͵ρξετκαʹ
Chinese
一十六萬五千三百二十一
Chinese (financial)
壹拾陸萬伍仟參佰貳拾壹
In other modern scripts
Eastern Arabic ١٦٥٣٢١ Devanagari १६५३२१ Bengali ১৬৫৩২১ Tamil ௧௬௫௩௨௧ Thai ๑๖๕๓๒๑ Tibetan ༡༦༥༣༢༡ Khmer ១៦៥៣២១ Lao ໑໖໕໓໒໑ Burmese ၁၆၅၃၂၁

Also seen as

Unicode codepoint
𨗉
CJK Unified Ideograph-285C9
U+285C9
Other letter (Lo)

UTF-8 encoding: F0 A8 97 89 (4 bytes).

Hex color
#0285C9
RGB(2, 133, 201)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.2.133.201.

Address
0.2.133.201
Class
reserved
IPv4-mapped IPv6
::ffff:0.2.133.201

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 165,321 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