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13,402

13,402 is a composite number, even.

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.).
Deficient Number Odious Number Pernicious Number Recamán's Sequence Semiprime Squarefree

Properties

Parity
Even
Digit count
5
Digit sum
10
Digit product
0
Digital root
1
Palindrome
No
Bit width
14 bits
Reversed
20,431
Recamán's sequence
a(47,471) = 13,402
Square (n²)
179,613,604
Cube (n³)
2,407,181,520,808
Divisor count
4
σ(n) — sum of divisors
20,106
φ(n) — Euler's totient
6,700
Sum of prime factors
6,703

Primality

Prime factorization: 2 × 6701

Nearest primes: 13,399 (−3) · 13,411 (+9)

Divisors & multiples

All divisors (4)
1 · 2 · 6701 (half) · 13402
Aliquot sum (sum of proper divisors): 6,704
Factor pairs (a × b = 13,402)
1 × 13402
2 × 6701
First multiples
13,402 · 26,804 (double) · 40,206 · 53,608 · 67,010 · 80,412 · 93,814 · 107,216 · 120,618 · 134,020

Sums & aliquot sequence

As a sum of two squares: 39² + 109²
As consecutive integers: 3,349 + 3,350 + 3,351 + 3,352
Aliquot sequence: 13,402 6,704 6,316 4,744 4,166 2,086 1,514 760 1,040 1,564 1,460 1,648 1,576 1,394 874 566 286 — unresolved within range

Representations

In words
thirteen thousand four hundred two
Ordinal
13402nd
Binary
11010001011010
Octal
32132
Hexadecimal
0x345A
Base64
NFo=
One's complement
52,133 (16-bit)
In other bases
ternary (3) 200101101
quaternary (4) 3101122
quinary (5) 412102
senary (6) 142014
septenary (7) 54034
nonary (9) 20341
undecimal (11) a084
duodecimal (12) 790a
tridecimal (13) 613c
tetradecimal (14) 4c54
pentadecimal (15) 3e87

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹 𒌋𒌋𒁹𒁹
Egyptian hieroglyphic
𓂍𓆼𓆼𓆼𓍢𓍢𓍢𓍢𓏺𓏺
Greek (Milesian)
͵ιγυβʹ
Mayan (base 20)
𝋡·𝋭·𝋪·𝋢
Chinese
一萬三千四百零二
Chinese (financial)
壹萬參仟肆佰零貳
In other modern scripts
Eastern Arabic ١٣٤٠٢ Devanagari १३४०२ Bengali ১৩৪০২ Tamil ௧௩௪௦௨ Thai ๑๓๔๐๒ Tibetan ༡༣༤༠༢ Khmer ១៣៤០២ Lao ໑໓໔໐໒ Burmese ၁၃၄၀၂

Digit at this position in famous constants

π — Pi (π)
Digit 13,402 = 5
e — Euler's number (e)
Digit 13,402 = 8
φ — Golden ratio (φ)
Digit 13,402 = 4
√2 — Pythagoras's (√2)
Digit 13,402 = 8
ln 2 — Natural log of 2
Digit 13,402 = 6
γ — Euler-Mascheroni (γ)
Digit 13,402 = 3

Also seen as

Goldbach decomposition

Goldbach's conjecture says every even integer greater than 2 is the sum of two primes. For 13402, here are decompositions:

  • 3 + 13399 = 13402
  • 5 + 13397 = 13402
  • 71 + 13331 = 13402
  • 89 + 13313 = 13402
  • 173 + 13229 = 13402
  • 239 + 13163 = 13402
  • 251 + 13151 = 13402
  • 281 + 13121 = 13402

Showing the first eight; more decompositions exist.

Unicode codepoint
CJK Unified Ideograph-345A
U+345A
Other letter (Lo)

UTF-8 encoding: E3 91 9A (3 bytes).

Hex color
#00345A
RGB(0, 52, 90)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.52.90.

Address
0.0.52.90
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.52.90

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

Position in π

The digit sequence 13402 first appears in π at position 240,640 of the decimal expansion (the 240,640ordinal-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.