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155,321

155,321 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.).

155,321 (one hundred fifty-five thousand three hundred twenty-one) is an odd 6-digit number. It is a composite number with 4 divisors, and factors as 127 × 1,223. Written other ways, in hexadecimal, 0x25EB9.

Arithmetic Number Cube-Free Deficient Number Odious Number Pernicious Number Recamán's Sequence Self Number Semiprime Squarefree

Interestingness

Properties

Parity
Odd
Digit count
6
Digit sum
17
Digit product
150
Digital root
8
Palindrome
No
Bit width
18 bits
Reversed
123,551
Recamán's sequence
a(477,477) = 155,321
Square (n²)
24,124,613,041
Cube (n³)
3,747,059,022,141,161
Divisor count
4
σ(n) — sum of divisors
156,672
φ(n) — Euler's totient
153,972
Sum of prime factors
1,350

Primality

Prime factorization: 127 × 1223

Nearest primes: 155,317 (−4) · 155,327 (+6)

Divisors & multiples

All divisors (4)
1 · 127 · 1223 · 155321
Aliquot sum (sum of proper divisors): 1,351
Factor pairs (a × b = 155,321)
1 × 155321
127 × 1223
First multiples
155,321 · 310,642 (double) · 465,963 · 621,284 · 776,605 · 931,926 · 1,087,247 · 1,242,568 · 1,397,889 · 1,553,210

Sums & aliquot sequence

As consecutive integers: 77,660 + 77,661 1,160 + 1,161 + … + 1,286 485 + 486 + … + 738
Aliquot sequence: 155,321 1,351 201 71 1 0 — terminates at zero

Continued fraction of √n

√155,321 = [394; (9, 3, 1, 2, 9, 7, 2, 8, 2, 24, 6, 3, 1, 3, 2, 5, 14, 6, 1, 3, 1, 1, 1, 1, …)]

Representations

In words
one hundred fifty-five thousand three hundred twenty-one
Ordinal
155321st
Binary
100101111010111001
Octal
457271
Hexadecimal
0x25EB9
Base64
Al65
One's complement
4,294,811,974 (32-bit)
Scientific notation
1.55321 × 10⁵
As a duration
155,321 s = 1 day, 19 hours, 8 minutes, 41 seconds
In other bases
ternary (3) 21220001122
quaternary (4) 211322321
quinary (5) 14432241
senary (6) 3155025
septenary (7) 1214555
nonary (9) 256048
undecimal (11) a6771
duodecimal (12) 75a75
tridecimal (13) 5590a
tetradecimal (14) 40865
pentadecimal (15) 3104b

As an angle

155,321° = 431 × 360° + 161°
161° ≈ 2.81 rad
Compass bearing: SSE (south-southeast)

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒌋𒌋𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹
Egyptian hieroglyphic
𓆐𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓆼𓍢𓍢𓍢𓎆𓎆𓏺
Greek (Milesian)
͵ρνετκαʹ
Mayan (base 20)
𝋳·𝋨·𝋦·𝋡
Chinese
一十五萬五千三百二十一
Chinese (financial)
壹拾伍萬伍仟參佰貳拾壹
In other modern scripts
Eastern Arabic ١٥٥٣٢١ Devanagari १५५३२१ Bengali ১৫৫৩২১ Tamil ௧௫௫௩௨௧ Thai ๑๕๕๓๒๑ Tibetan ༡༥༥༣༢༡ Khmer ១៥៥៣២១ Lao ໑໕໕໓໒໑ Burmese ၁၅၅၃၂၁

Also seen as

Unicode codepoint
𥺹
CJK Unified Ideograph-25Eb9
U+25EB9
Other letter (Lo)

UTF-8 encoding: F0 A5 BA B9 (4 bytes).

Hex color
#025EB9
RGB(2, 94, 185)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.2.94.185.

Address
0.2.94.185
Class
reserved
IPv4-mapped IPv6
::ffff:0.2.94.185

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 155,321 and was likely granted around 1873.

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

Related reading

  • Mayan numerals — Vigesimal dots-and-bars with a shell zero — one of the earliest true zeros.