Live analysis

10,121

10,121 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.).

Arithmetic Number Consecutive Digits Deficient Number Happy Number Odious Number Pernicious Number Recamán's Sequence Semiprime Squarefree

Properties

Parity: Odd
Digit count: 5
Digit sum: 5
Digit product: 0
Digital root: 5
Palindrome: No
Bit width: 14 bits
Reversed: 12,101
Recamán's sequence: a(5,501) = 10,121
Square (n²): 102,434,641
Cube (n³): 1,036,741,001,561
Divisor count: 4
σ(n) — sum of divisors: 10,500
φ(n) — Euler's totient: 9,744
Sum of prime factors: 378

Primality

Prime factorization: 29 × 349

Nearest primes: 10,111 (−10) · 10,133 (+12)

Divisors & multiples

All divisors (4)

1 · 29 · 349 · 10121

Aliquot sum (sum of proper divisors): 379

Factor pairs (a × b = 10,121)

1 × 10121

29 × 349

First multiples

10,121 · 20,242 (double) · 30,363 · 40,484 · 50,605 · 60,726 · 70,847 · 80,968 · 91,089 · 101,210

Sums & aliquot sequence

As a sum of two squares: 11² + 100² = 61² + 80²

As consecutive integers: 5,060 + 5,061 335 + 336 + … + 363 146 + 147 + … + 203

Aliquot sequence: 10,121 → 379 → 1 → 0 — terminates at zero

Representations

In words: ten thousand one hundred twenty-one
Ordinal: 10121st
Binary: 10011110001001
Octal: 23611
Hexadecimal: 0x2789
Base64: J4k=
One's complement: 55,414 (16-bit)

In other bases

ternary (3) 111212212

quaternary (4) 2132021

quinary (5) 310441

senary (6) 114505

septenary (7) 41336

nonary (9) 14785

undecimal (11) 7671

duodecimal (12) 5a35

tridecimal (13) 47b7

tetradecimal (14) 398d

pentadecimal (15) 2eeb

Historical numeral systems

Babylonian (base 60): 𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹
Egyptian hieroglyphic: 𓂍𓍢𓎆𓎆𓏺
Greek (Milesian): ͵ιρκαʹ
Mayan (base 20): 𝋡·𝋥·𝋦·𝋡
Chinese: 一萬零一百二十一
Chinese (financial): 壹萬零壹佰貳拾壹

In other modern scripts

Eastern Arabic ١٠١٢١ Devanagari १०१२१ Bengali ১০১২১ Tamil ௧௦௧௨௧ Thai ๑๐๑๒๑ Tibetan ༡༠༡༢༡ Khmer ១០១២១ Lao ໑໐໑໒໑ Burmese ၁၀၁၂၁

Digit at this position in famous constants

π — Pi (π): Digit 10,121 = 9
e — Euler's number (e): Digit 10,121 = 7
φ — Golden ratio (φ): Digit 10,121 = 2
√2 — Pythagoras's (√2): Digit 10,121 = 3
ln 2 — Natural log of 2: Digit 10,121 = 4
γ — Euler-Mascheroni (γ): Digit 10,121 = 2

Also seen as

Unicode codepoint

➉

Dingbat Circled Sans-Serif Number Ten

U+2789

Other number (No)

UTF-8 encoding: E2 9E 89 (3 bytes).

Lookup U+2789 on Compart ↗ Lookup on FileFormat.Info ↗

Hex color

#002789

RGB(0, 39, 137)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.39.137.

Address: 0.0.39.137
Class: reserved
IPv4-mapped IPv6: ::ffff:0.0.39.137

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

Position in π

The digit sequence 10121 first appears in π at position 30,373 of the decimal expansion (the 30,373ordinal-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 10121 on Pi Search ↗