Live analysis

61,421

61,421 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.).

61,421 (sixty-one thousand four hundred twenty-one) is an odd 5-digit number. It is a composite number with 4 divisors, and factors as 17 × 3,613. Written other ways, in hexadecimal, 0xEFED.

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

Interestingness

★ ★ ★ ☆ ☆

5 notable facts · grade C

61,409 61,410 61,411 61,412 61,413 61,414 61,415 61,416 61,417 61,418 61,419 61,420 61,421 61,422 61,423 61,424 61,425 61,426 61,427 61,428 61,429 61,430 61,431 61,432 61,433

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Properties

Parity: Odd
Digit count: 5
Digit sum: 14
Digit product: 48
Digital root: 5
Palindrome: No
Bit width: 16 bits
Reversed: 12,416
Recamán's sequence: a(44,430) = 61,421
Square (n²): 3,772,539,241
Cube (n³): 231,713,132,721,461
Divisor count: 4
σ(n) — sum of divisors: 65,052
φ(n) — Euler's totient: 57,792
Sum of prime factors: 3,630

Primality

Prime factorization: 17 × 3613

Nearest primes: 61,417 (−4) · 61,441 (+20)

Divisors & multiples

All divisors (4)

1 · 17 · 3613 · 61421

Aliquot sum (sum of proper divisors): 3,631

Factor pairs (a × b = 61,421)

1 × 61421

17 × 3613

First multiples

61,421 · 122,842 (double) · 184,263 · 245,684 · 307,105 · 368,526 · 429,947 · 491,368 · 552,789 · 614,210

Sums & aliquot sequence

As a sum of two squares: 125² + 214² = 130² + 211²

As consecutive integers: 30,710 + 30,711 3,605 + 3,606 + … + 3,621 1,790 + 1,791 + … + 1,823

Aliquot sequence: 61,421 → 3,631 → 1 → 0 — terminates at zero

Continued fraction of √n

√61,421 = [247; (1, 4, 1, 37, 3, 2, 1, 1, 4, 2, 1, 2, 1, 1, 28, 1, 1, 2, 1, 2, 4, 1, 1, 2, …)]

Period length 30 — the block in parentheses repeats forever.

Representations

In words: sixty-one thousand four hundred twenty-one
Ordinal: 61421st
Binary: 1110111111101101
Octal: 167755
Hexadecimal: 0xEFED
Base64: 7+0=
One's complement: 4,114 (16-bit)
Scientific notation: 6.1421 × 10⁴
As a duration: 61,421 s = 17 hours, 3 minutes, 41 seconds

In other bases

ternary (3) 10010020212

quaternary (4) 32333231

quinary (5) 3431141

senary (6) 1152205

septenary (7) 344033

nonary (9) 103225

undecimal (11) 42168

duodecimal (12) 2b665

tridecimal (13) 21c59

tetradecimal (14) 18553

pentadecimal (15) 132eb

As an angle

61,421° = 170 × 360° + 221°

221° ≈ 3.857 rad

Compass bearing: SW (southwest)

Why does a circle have 360 degrees? →

Historical numeral systems

Babylonian (base 60): 𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹
Egyptian hieroglyphic: 𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓍢𓍢𓍢𓍢𓎆𓎆𓏺
Greek (Milesian): ͵ξαυκαʹ
Mayan (base 20): 𝋧·𝋭·𝋫·𝋡
Chinese: 六萬一千四百二十一
Chinese (financial): 陸萬壹仟肆佰貳拾壹

In other modern scripts

Eastern Arabic ٦١٤٢١ Devanagari ६१४२१ Bengali ৬১৪২১ Tamil ௬௧௪௨௧ Thai ๖๑๔๒๑ Tibetan ༦༡༤༢༡ Khmer ៦១៤២១ Lao ໖໑໔໒໑ Burmese ၆၁၄၂၁

Digit at this position in famous constants

π — Pi (π): Digit 61,421 = 1
e — Euler's number (e): Digit 61,421 = 5
φ — Golden ratio (φ): Digit 61,421 = 8
√2 — Pythagoras's (√2): Digit 61,421 = 0
ln 2 — Natural log of 2: Digit 61,421 = 2
γ — Euler-Mascheroni (γ): Digit 61,421 = 8

Also seen as

Hex color

#00EFED

RGB(0, 239, 237)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.239.237.

Address: 0.0.239.237
Class: reserved
IPv4-mapped IPv6: ::ffff:0.0.239.237

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

Position in π

The digit sequence 61421 first appears in π at position 172,483 of the decimal expansion (the 172,483ordinal-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 61421 on Pi Search ↗