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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.).
Arithmetic Number Deficient Number Happy Number Harshad / Niven Odious Number Pernicious Number Recamán's Sequence

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

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)
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

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
Canadian Syllabics E
U+1401
Other letter (Lo)

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

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.

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.