Live analysis

5,121

5,121 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.).

5,121 (five thousand one hundred twenty-one) is an odd 4-digit number. It is a composite number with 6 divisors, and factors as 3² × 569. Written other ways, in hexadecimal, 0x1401.

Arithmetic Number Cube-Free Deficient Number Happy Number Harshad / Niven Moran Number Odious Number Pernicious Number Recamán's Sequence

Interestingness

★ ★ ★ ★ ☆

6 notable facts · grade B

5,109 5,110 5,111 5,112 5,113 5,114 5,115 5,116 5,117 5,118 5,119 5,120 5,121 5,122 5,123 5,124 5,125 5,126 5,127 5,128 5,129 5,130 5,131 5,132 5,133

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Properties

Parity: Odd
Digit count: 4
Digit sum: 9
Digit product: 10
Digital root: 9
Palindrome: No
Bit width: 13 bits
Reversed: 1,215
Recamán's sequence: a(4,970) = 5,121
Square (n²): 26,224,641
Cube (n³): 134,296,386,561
Divisor count: 6
σ(n) — sum of divisors: 7,410
φ(n) — Euler's totient: 3,408
Sum of prime factors: 575

Primality

Prime factorization: 3 ² × 569

Nearest primes: 5,119 (−2) · 5,147 (+26)

Divisors & multiples

All divisors (6)

1 · 3 · 9 · 569 · 1707 · 5121

Aliquot sum (sum of proper divisors): 2,289

Factor pairs (a × b = 5,121)

1 × 5121

3 × 1707

9 × 569

First multiples

5,121 · 10,242 (double) · 15,363 · 20,484 · 25,605 · 30,726 · 35,847 · 40,968 · 46,089 · 51,210

Sums & aliquot sequence

As a sum of two squares: 39² + 60²

As consecutive integers: 2,560 + 2,561 1,706 + 1,707 + 1,708 851 + 852 + 853 + 854 + 855 + 856 565 + 566 + … + 573

Aliquot sequence: 5,121 → 2,289 → 1,231 → 1 → 0 — terminates at zero

Continued fraction of √n

√5,121 = [71; (1, 1, 3, 1, 1, 2, 2, 1, 3, 1, 3, 3, 3, 5, 2, 2, 1, 2, 1, 1, 1, 1, 1, 1, …)]

Representations

In words: five thousand one hundred twenty-one
Ordinal: 5121st
Binary: 1010000000001
Octal: 12001
Hexadecimal: 0x1401
Base64: FAE=
One's complement: 60,414 (16-bit)
Scientific notation: 5.121 × 10³
As a duration: 5,121 s = 1 hour, 25 minutes, 21 seconds

In other bases

ternary (3) 21000200

quaternary (4) 1100001

quinary (5) 130441

senary (6) 35413

septenary (7) 20634

nonary (9) 7020

undecimal (11) 3936

duodecimal (12) 2b69

tridecimal (13) 243c

tetradecimal (14) 1c1b

pentadecimal (15) 17b6

As an angle

5,121° = 14 × 360° + 81°

81° ≈ 1.414 rad

Compass bearing: E (east)

Why does a circle have 360 degrees? →

Historical numeral systems

Babylonian (base 60): 𒁹 𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒁹
Egyptian hieroglyphic: 𓆼𓆼𓆼𓆼𓆼𓍢𓎆𓎆𓏺
Greek (Milesian): ͵ερκαʹ
Mayan (base 20): 𝋬·𝋰·𝋡
Chinese: 五千一百二十一
Chinese (financial): 伍仟壹佰貳拾壹

In other modern scripts

Eastern Arabic ٥١٢١ Devanagari ५१२१ Bengali ৫১২১ Tamil ௫௧௨௧ Thai ๕๑๒๑ Tibetan ༥༡༢༡ Khmer ៥១២១ Lao ໕໑໒໑ Burmese ၅၁၂၁

Digit at this position in famous constants

π — Pi (π): Digit 5,121 = 4
e — Euler's number (e): Digit 5,121 = 6
φ — Golden ratio (φ): Digit 5,121 = 8
√2 — Pythagoras's (√2): Digit 5,121 = 8
ln 2 — Natural log of 2: Digit 5,121 = 7
γ — Euler-Mascheroni (γ): Digit 5,121 = 1

Also seen as

Unicode codepoint

ᐁ

Canadian Syllabics E

U+1401

Other letter (Lo)

UTF-8 encoding: E1 90 81 (3 bytes).

Lookup U+1401 on Compart ↗ Lookup on FileFormat.Info ↗

Hex color

#001401

RGB(0, 20, 1)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.20.1.

Address: 0.0.20.1
Class: reserved
IPv4-mapped IPv6: ::ffff:0.0.20.1

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

Musical pitch

Heard as a frequency, 5,121 Hz is closest to:

Concert pitch (A4 = 440 Hz): D♯8 (4978 Hz, +49¢ — about midway to E8)
Scientific pitch (C4 = 256 Hz): E8 (5160.6 Hz, -13¢)
Baroque pitch (A4 = 415 Hz): F8 (5270.2 Hz, -50¢ — about midway to E8)

Position in π

The digit sequence 5121 first appears in π at position 3,454 of the decimal expansion (the 3,454ordinal-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.

Look up 5121 on Pi Search ↗