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20,413

20,413 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 Odious Number Pernicious Number Recamán's Sequence Self Number Semiprime Squarefree

Properties

Parity
Odd
Digit count
5
Digit sum
10
Digit product
0
Digital root
1
Palindrome
No
Bit width
15 bits
Reversed
31,402
Recamán's sequence
a(86,390) = 20,413
Square (n²)
416,690,569
Cube (n³)
8,505,904,584,997
Divisor count
4
σ(n) — sum of divisors
20,700
φ(n) — Euler's totient
20,128
Sum of prime factors
286

Primality

Prime factorization: 137 × 149

Nearest primes: 20,411 (−2) · 20,431 (+18)

Divisors & multiples

All divisors (4)
1 · 137 · 149 · 20413
Aliquot sum (sum of proper divisors): 287
Factor pairs (a × b = 20,413)
1 × 20413
137 × 149
First multiples
20,413 · 40,826 (double) · 61,239 · 81,652 · 102,065 · 122,478 · 142,891 · 163,304 · 183,717 · 204,130

Sums & aliquot sequence

As a sum of two squares: 37² + 138² = 82² + 117²
As consecutive integers: 10,206 + 10,207 81 + 82 + … + 217 63 + 64 + … + 211
Aliquot sequence: 20,413 287 49 8 7 1 0 — terminates at zero

Representations

In words
twenty thousand four hundred thirteen
Ordinal
20413th
Binary
100111110111101
Octal
47675
Hexadecimal
0x4FBD
Base64
T70=
One's complement
45,122 (16-bit)
In other bases
ternary (3) 1001000001
quaternary (4) 10332331
quinary (5) 1123123
senary (6) 234301
septenary (7) 113341
nonary (9) 31001
undecimal (11) 14378
duodecimal (12) b991
tridecimal (13) 93a3
tetradecimal (14) 7621
pentadecimal (15) 60ad

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋 𒌋𒁹𒁹𒁹
Egyptian hieroglyphic
𓂍𓂍𓍢𓍢𓍢𓍢𓎆𓏺𓏺𓏺
Greek (Milesian)
͵κυιγʹ
Mayan (base 20)
𝋢·𝋫·𝋠·𝋭
Chinese
二萬零四百一十三
Chinese (financial)
貳萬零肆佰壹拾參
In other modern scripts
Eastern Arabic ٢٠٤١٣ Devanagari २०४१३ Bengali ২০৪১৩ Tamil ௨௦௪௧௩ Thai ๒๐๔๑๓ Tibetan ༢༠༤༡༣ Khmer ២០៤១៣ Lao ໒໐໔໑໓ Burmese ၂၀၄၁၃

Digit at this position in famous constants

π — Pi (π)
Digit 20,413 = 2
e — Euler's number (e)
Digit 20,413 = 9
φ — Golden ratio (φ)
Digit 20,413 = 9
√2 — Pythagoras's (√2)
Digit 20,413 = 8
ln 2 — Natural log of 2
Digit 20,413 = 9
γ — Euler-Mascheroni (γ)
Digit 20,413 = 5

Also seen as

Unicode codepoint
CJK Unified Ideograph-4Fbd
U+4FBD
Other letter (Lo)

UTF-8 encoding: E4 BE BD (3 bytes).

Hex color
#004FBD
RGB(0, 79, 189)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.79.189.

Address
0.0.79.189
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.79.189

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

Position in π

The digit sequence 20413 first appears in π at position 28,185 of the decimal expansion (the 28,185ordinal-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.