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131,949

131,949 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.).

131,949 (one hundred thirty-one thousand nine hundred forty-nine) is an odd 6-digit number. It is a composite number with 14 divisors, and factors as 3⁶ × 181. Written other ways, in hexadecimal, 0x2036D.

Arithmetic Number Deficient Number Evil Number Frugal Number Harshad / Niven Recamán's Sequence

Interestingness

Properties

Parity
Odd
Digit count
6
Digit sum
27
Digit product
972
Digital root
9
Palindrome
No
Bit width
18 bits
Reversed
949,131
Recamán's sequence
a(228,474) = 131,949
Square (n²)
17,410,538,601
Cube (n³)
2,297,303,157,863,349
Divisor count
14
σ(n) — sum of divisors
198,926
φ(n) — Euler's totient
87,480
Sum of prime factors
199

Primality

Prime factorization: 3 6 × 181

Nearest primes: 131,947 (−2) · 131,959 (+10)

Divisors & multiples

All divisors (14)
1 · 3 · 9 · 27 · 81 · 181 · 243 · 543 · 729 · 1629 · 4887 · 14661 · 43983 · 131949
Aliquot sum (sum of proper divisors): 66,977
Factor pairs (a × b = 131,949)
1 × 131949
3 × 43983
9 × 14661
27 × 4887
81 × 1629
181 × 729
243 × 543
First multiples
131,949 · 263,898 (double) · 395,847 · 527,796 · 659,745 · 791,694 · 923,643 · 1,055,592 · 1,187,541 · 1,319,490

Sums & aliquot sequence

As a sum of two squares: 243² + 270²
As consecutive integers: 65,974 + 65,975 43,982 + 43,983 + 43,984 21,989 + 21,990 + 21,991 + 21,992 + 21,993 + 21,994 14,657 + 14,658 + … + 14,665
Aliquot sequence: 131,949 66,977 1 0 — terminates at zero

Continued fraction of √n

√131,949 = [363; (4, 28, 1, 4, 3, 1, 5, 20, 145, 4, 145, 20, 5, 1, 3, 4, 1, 28, 4, 726)]

Period length 20 — the block in parentheses repeats forever.

Representations

In words
one hundred thirty-one thousand nine hundred forty-nine
Ordinal
131949th
Binary
100000001101101101
Octal
401555
Hexadecimal
0x2036D
Base64
AgNt
One's complement
4,294,835,346 (32-bit)
Scientific notation
1.31949 × 10⁵
As a duration
131,949 s = 1 day, 12 hours, 39 minutes, 9 seconds
In other bases
ternary (3) 20201000000
quaternary (4) 200031231
quinary (5) 13210244
senary (6) 2454513
septenary (7) 1056456
nonary (9) 221000
undecimal (11) 90154
duodecimal (12) 64439
tridecimal (13) 4809c
tetradecimal (14) 3612d
pentadecimal (15) 29169

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓆐𓂍𓂍𓂍𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian)
͵ρλαϡμθʹ
Mayan (base 20)
𝋰·𝋩·𝋱·𝋩
Chinese
一十三萬一千九百四十九
Chinese (financial)
壹拾參萬壹仟玖佰肆拾玖
In other modern scripts
Eastern Arabic ١٣١٩٤٩ Devanagari १३१९४९ Bengali ১৩১৯৪৯ Tamil ௧௩௧௯௪௯ Thai ๑๓๑๙๔๙ Tibetan ༡༣༡༩༤༩ Khmer ១៣១៩៤៩ Lao ໑໓໑໙໔໙ Burmese ၁၃၁၉၄၉

Also seen as

Unicode codepoint
𠍭
CJK Unified Ideograph-2036D
U+2036D
Other letter (Lo)

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

Hex color
#02036D
RGB(2, 3, 109)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.2.3.109.

Address
0.2.3.109
Class
reserved
IPv4-mapped IPv6
::ffff:0.2.3.109

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 131,949 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 131949 first appears in π at position 775,230 of the decimal expansion (the 775,230ordinal-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°.