Live analysis

61,009

61,009 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.).

61,009 (sixty-one thousand nine) is an odd 5-digit number. It is a composite number with 9 divisors, and factors as 13² × 19². It is a perfect square (247²). Written other ways, in hexadecimal, 0xEE51.

Arithmetic Number Cube-Free Deficient Number Flippable Odious Number Perfect Square Powerful Number Recamán's Sequence

Interestingness

★ ★ ★ ★ ☆

6 notable facts · grade B

60,997 60,998 60,999 61,000 61,001 61,002 61,003 61,004 61,005 61,006 61,007 61,008 61,009 61,010 61,011 61,012 61,013 61,014 61,015 61,016 61,017 61,018 61,019 61,020 61,021

less more

Properties

Parity: Odd
Digit count: 5
Digit sum: 16
Digit product: 0
Digital root: 7
Palindrome: No
Bit width: 16 bits
Reversed: 90,016
Flips to (rotate 180°): 60,019
Recamán's sequence: a(27,814) = 61,009
Square (n²): 3,722,098,081
Cube (n³): 227,081,481,823,729
Square root (√n): 247
Divisor count: 9
σ(n) — sum of divisors: 69,723
φ(n) — Euler's totient: 53,352
Sum of prime factors: 64

Primality

Prime factorization: 13 ² × 19 ²

Nearest primes: 61,007 (−2) · 61,027 (+18)

Divisors & multiples

All divisors (9)

1 · 13 · 19 · 169 · 247 · 361 · 3211 · 4693 · 61009

Aliquot sum (sum of proper divisors): 8,714

Factor pairs (a × b = 61,009)

1 × 61009

13 × 4693

19 × 3211

169 × 361

247 × 247

First multiples

61,009 · 122,018 (double) · 183,027 · 244,036 · 305,045 · 366,054 · 427,063 · 488,072 · 549,081 · 610,090

Sums & aliquot sequence

As a sum of two squares: 0² + 247² = 95² + 228²

As consecutive integers: 30,504 + 30,505 4,687 + 4,688 + … + 4,699 3,202 + 3,203 + … + 3,220 2,334 + 2,335 + … + 2,359

Aliquot sequence: 61,009 → 8,714 → 4,360 → 5,540 → 6,136 → 6,464 → 6,490 → 6,470 → 5,194 → 4,040 → 5,140 → 5,696 → 5,734 → 3,194 → 1,600 → 2,337 → 1,023 — unresolved within range

Representations

In words: sixty-one thousand nine
Ordinal: 61009th
Binary: 1110111001010001
Octal: 167121
Hexadecimal: 0xEE51
Base64: 7lE=
One's complement: 4,526 (16-bit)
Scientific notation: 6.1009 × 10⁴
As a duration: 61,009 s = 16 hours, 56 minutes, 49 seconds

In other bases

ternary (3) 10002200121

quaternary (4) 32321101

quinary (5) 3423014

senary (6) 1150241

septenary (7) 342604

nonary (9) 102617

undecimal (11) 41923

duodecimal (12) 2b381

tridecimal (13) 21a00

tetradecimal (14) 1833b

pentadecimal (15) 13124

As an angle

61,009° = 169 × 360° + 169°

169° ≈ 2.95 rad

Compass bearing: S (south)

Why does a circle have 360 degrees? →

Historical numeral systems

Babylonian (base 60): 𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic: 𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian): ͵ξαθʹ
Mayan (base 20): 𝋧·𝋬·𝋪·𝋩
Chinese: 六萬一千零九
Chinese (financial): 陸萬壹仟零玖

In other modern scripts

Eastern Arabic ٦١٠٠٩ Devanagari ६१००९ Bengali ৬১০০৯ Tamil ௬௧௦௦௯ Thai ๖๑๐๐๙ Tibetan ༦༡༠༠༩ Khmer ៦១០០៩ Lao ໖໑໐໐໙ Burmese ၆၁၀၀၉

Digit at this position in famous constants

π — Pi (π): Digit 61,009 = 1
e — Euler's number (e): Digit 61,009 = 5
φ — Golden ratio (φ): Digit 61,009 = 6
√2 — Pythagoras's (√2): Digit 61,009 = 7
ln 2 — Natural log of 2: Digit 61,009 = 4
γ — Euler-Mascheroni (γ): Digit 61,009 = 3

Also seen as

Hex color

#00EE51

RGB(0, 238, 81)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.238.81.

Address: 0.0.238.81
Class: reserved
IPv4-mapped IPv6: ::ffff:0.0.238.81

Unspecified address (0.0.0.0/8) — "this network" placeholder.

Position in π

The digit sequence 61009 first appears in π at position 92,033 of the decimal expansion (the 92,033ordinal-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.

Look up 61009 on Pi Search ↗