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133,281

133,281 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.).

133,281 (one hundred thirty-three thousand two hundred eighty-one) is an odd 6-digit number. It is a composite number with 12 divisors, and factors as 3² × 59 × 251. Written other ways, in hexadecimal, 0x208A1.

Arithmetic Number Cube-Free Deficient Number Odious Number Pernicious Number

Interestingness

Properties

Parity
Odd
Digit count
6
Digit sum
18
Digit product
144
Digital root
9
Palindrome
No
Bit width
18 bits
Reversed
182,331
Square (n²)
17,763,824,961
Cube (n³)
2,367,580,354,627,041
Divisor count
12
σ(n) — sum of divisors
196,560
φ(n) — Euler's totient
87,000
Sum of prime factors
316

Primality

Prime factorization: 3 2 × 59 × 251

Nearest primes: 133,279 (−2) · 133,283 (+2)

Divisors & multiples

All divisors (12)
1 · 3 · 9 · 59 · 177 · 251 · 531 · 753 · 2259 · 14809 · 44427 · 133281
Aliquot sum (sum of proper divisors): 63,279
Factor pairs (a × b = 133,281)
1 × 133281
3 × 44427
9 × 14809
59 × 2259
177 × 753
251 × 531
First multiples
133,281 · 266,562 (double) · 399,843 · 533,124 · 666,405 · 799,686 · 932,967 · 1,066,248 · 1,199,529 · 1,332,810

Sums & aliquot sequence

As consecutive integers: 66,640 + 66,641 44,426 + 44,427 + 44,428 22,211 + 22,212 + 22,213 + 22,214 + 22,215 + 22,216 14,805 + 14,806 + … + 14,813
Aliquot sequence: 133,281 63,279 30,321 14,639 1 0 — terminates at zero

Continued fraction of √n

√133,281 = [365; (13, 26, 1, 28, 4, 8, 1, 3, 3, 1, 1, 3, 3, 2, 1, 2, 3, 104, 91, 3, 1, 5, 1, 3, …)]

Representations

In words
one hundred thirty-three thousand two hundred eighty-one
Ordinal
133281st
Binary
100000100010100001
Octal
404241
Hexadecimal
0x208A1
Base64
Agih
One's complement
4,294,834,014 (32-bit)
Scientific notation
1.33281 × 10⁵
As a duration
133,281 s = 1 day, 13 hours, 1 minute, 21 seconds
In other bases
ternary (3) 20202211100
quaternary (4) 200202201
quinary (5) 13231111
senary (6) 2505013
septenary (7) 1063401
nonary (9) 222740
undecimal (11) 91155
duodecimal (12) 65169
tridecimal (13) 48885
tetradecimal (14) 36801
pentadecimal (15) 29756

As an angle

133,281° = 370 × 360° + 81°
81° ≈ 1.414 rad
Compass bearing: E (east)

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒁹 𒌋𒌋𒁹
Egyptian hieroglyphic
𓆐𓂍𓂍𓂍𓆼𓆼𓆼𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺
Greek (Milesian)
͵ρλγσπαʹ
Mayan (base 20)
𝋰·𝋭·𝋤·𝋡
Chinese
一十三萬三千二百八十一
Chinese (financial)
壹拾參萬參仟貳佰捌拾壹
In other modern scripts
Eastern Arabic ١٣٣٢٨١ Devanagari १३३२८१ Bengali ১৩৩২৮১ Tamil ௧௩௩௨௮௧ Thai ๑๓๓๒๘๑ Tibetan ༡༣༣༢༨༡ Khmer ១៣៣២៨១ Lao ໑໓໓໒໘໑ Burmese ၁၃၃၂၈၁

Also seen as

Unicode codepoint
𠢡
CJK Unified Ideograph-208A1
U+208A1
Other letter (Lo)

UTF-8 encoding: F0 A0 A2 A1 (4 bytes).

Hex color
#0208A1
RGB(2, 8, 161)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.2.8.161.

Address
0.2.8.161
Class
reserved
IPv4-mapped IPv6
::ffff:0.2.8.161

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 133,281 and was likely granted around 1872.

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

Position in π

The digit sequence 133281 first appears in π at position 88,807 of the decimal expansion (the 88,807ordinal-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

  • Babylonian numerals — The base-60 cuneiform system that gave us 60 minutes, 60 seconds, and 360°.