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131,149

131,149 is a prime, 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.).
Arithmetic Number Chen Prime Cube-Free Deficient Number Emirp Happy Number Odious Number Pernicious Number Prime Pythagorean Prime Sexy Prime Squarefree

Interestingness

Properties

Parity
Odd
Digit count
6
Digit sum
19
Digit product
108
Digital root
1
Palindrome
No
Bit width
18 bits
Reversed
941,131
Square (n²)
17,200,060,201
Cube (n³)
2,255,770,695,300,949
Divisor count
2
σ(n) — sum of divisors
131,150
φ(n) — Euler's totient
131,148

Primality

131,149 is prime. It has exactly two divisors: 1 and itself.

Divisors & multiples

All divisors (2)
1 · 131149
Aliquot sum (sum of proper divisors): 1
Factor pairs (a × b = 131,149)
1 × 131149
First multiples
131,149 · 262,298 (double) · 393,447 · 524,596 · 655,745 · 786,894 · 918,043 · 1,049,192 · 1,180,341 · 1,311,490

Sums & aliquot sequence

As a sum of two squares: 93² + 350²
As consecutive integers: 65,574 + 65,575

Continued fraction of √n

√131,149 = [362; (6, 1, 8, 1, 2, 17, 3, 8, 2, 1, 1, 59, 1, 3, 4, 1, 11, 1, 8, 1, 2, 1, 3, 2, …)]

Representations

In words
one hundred thirty-one thousand one hundred forty-nine
Ordinal
131149th
Binary
100000000001001101
Octal
400115
Hexadecimal
0x2004D
Base64
AgBN
One's complement
4,294,836,146 (32-bit)
Scientific notation
1.31149 × 10⁵
As a duration
131,149 s = 1 day, 12 hours, 25 minutes, 49 seconds
In other bases
ternary (3) 20122220101
quaternary (4) 200001031
quinary (5) 13144044
senary (6) 2451101
septenary (7) 1054234
nonary (9) 218811
undecimal (11) 8a597
duodecimal (12) 63a91
tridecimal (13) 47905
tetradecimal (14) 35b1b
pentadecimal (15) 28cd4

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓆐𓂍𓂍𓂍𓆼𓍢𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian)
͵ρλαρμθʹ
Mayan (base 20)
𝋰·𝋧·𝋱·𝋩
Chinese
一十三萬一千一百四十九
Chinese (financial)
壹拾參萬壹仟壹佰肆拾玖
In other modern scripts
Eastern Arabic ١٣١١٤٩ Devanagari १३११४९ Bengali ১৩১১৪৯ Tamil ௧௩௧௧௪௯ Thai ๑๓๑๑๔๙ Tibetan ༡༣༡༡༤༩ Khmer ១៣១១៤៩ Lao ໑໓໑໑໔໙ Burmese ၁၃၁၁၄၉

Also seen as

Prime neighborhood

Adjacent primes:

Pair status: sexy with 131143.

Unicode codepoint
𠁍
CJK Unified Ideograph-2004D
U+2004D
Other letter (Lo)

UTF-8 encoding: F0 A0 81 8D (4 bytes).

Hex color
#02004D
RGB(2, 0, 77)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.2.0.77.

Address
0.2.0.77
Class
reserved
IPv4-mapped IPv6
::ffff:0.2.0.77

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 131,149 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 131149 first appears in π at position 784,623 of the decimal expansion (the 784,623ordinal-suffix:rd 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.