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131,597

131,597 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.).

131,597 (one hundred thirty-one thousand five hundred ninety-seven) is an odd 6-digit number. It is a composite number with 4 divisors, and factors as 17 × 7,741. Written other ways, in hexadecimal, 0x2020D.

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

Interestingness

Properties

Parity
Odd
Digit count
6
Digit sum
26
Digit product
945
Digital root
8
Palindrome
No
Bit width
18 bits
Reversed
795,131
Recamán's sequence
a(229,178) = 131,597
Square (n²)
17,317,770,409
Cube (n³)
2,278,966,632,513,173
Divisor count
4
σ(n) — sum of divisors
139,356
φ(n) — Euler's totient
123,840
Sum of prime factors
7,758

Primality

Prime factorization: 17 × 7741

Nearest primes: 131,591 (−6) · 131,611 (+14)

Divisors & multiples

All divisors (4)
1 · 17 · 7741 · 131597
Aliquot sum (sum of proper divisors): 7,759
Factor pairs (a × b = 131,597)
1 × 131597
17 × 7741
First multiples
131,597 · 263,194 (double) · 394,791 · 526,388 · 657,985 · 789,582 · 921,179 · 1,052,776 · 1,184,373 · 1,315,970

Sums & aliquot sequence

As a sum of two squares: 109² + 346² = 254² + 259²
As consecutive integers: 65,798 + 65,799 7,733 + 7,734 + … + 7,749 3,854 + 3,855 + … + 3,887
Aliquot sequence: 131,597 7,759 1 0 — terminates at zero

Continued fraction of √n

√131,597 = [362; (1, 3, 4, 1, 1, 4, 14, 1, 1, 2, 2, 1, 2, 10, 2, 5, 1, 1, 1, 1, 1, 2, 2, 2, …)]

Period length 47 — the block in parentheses repeats forever.

Representations

In words
one hundred thirty-one thousand five hundred ninety-seven
Ordinal
131597th
Binary
100000001000001101
Octal
401015
Hexadecimal
0x2020D
Base64
AgIN
One's complement
4,294,835,698 (32-bit)
Scientific notation
1.31597 × 10⁵
As a duration
131,597 s = 1 day, 12 hours, 33 minutes, 17 seconds
In other bases
ternary (3) 20200111222
quaternary (4) 200020031
quinary (5) 13202342
senary (6) 2453125
septenary (7) 1055444
nonary (9) 220458
undecimal (11) 8a964
duodecimal (12) 641a5
tridecimal (13) 47b8b
tetradecimal (14) 35d5b
pentadecimal (15) 28ed2

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓆐𓂍𓂍𓂍𓆼𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian)
͵ρλαφϟζʹ
Mayan (base 20)
𝋰·𝋨·𝋳·𝋱
Chinese
一十三萬一千五百九十七
Chinese (financial)
壹拾參萬壹仟伍佰玖拾柒
In other modern scripts
Eastern Arabic ١٣١٥٩٧ Devanagari १३१५९७ Bengali ১৩১৫৯৭ Tamil ௧௩௧௫௯௭ Thai ๑๓๑๕๙๗ Tibetan ༡༣༡༥༩༧ Khmer ១៣១៥៩៧ Lao ໑໓໑໕໙໗ Burmese ၁၃၁၅၉၇

Also seen as

Unicode codepoint
𠈍
CJK Unified Ideograph-2020D
U+2020D
Other letter (Lo)

UTF-8 encoding: F0 A0 88 8D (4 bytes).

Hex color
#02020D
RGB(2, 2, 13)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.2.2.13.

Address
0.2.2.13
Class
reserved
IPv4-mapped IPv6
::ffff:0.2.2.13

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 131,597 and was likely granted around 1872.

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.