Number

19,013

19,013 is a prime, odd.

Arithmetic Number Chen Prime Cousin Prime Deficient Number Emirp Evil Number Prime Pythagorean Prime Squarefree

Properties

Parity: Odd
Digit count: 5
Digit sum: 14
Digit product: 0
Digital root: 5
Palindrome: No
Bit width: 15 bits
Reversed: 31,091
Square (n²): 361,494,169
Cube (n³): 6,873,088,635,197
Divisor count: 2
σ(n) — sum of divisors: 19,014
φ(n) — Euler's totient: 19,012

Primality

19,013 is prime. It has exactly two divisors: 1 and itself.

Divisors & multiples

All divisors (2)

1 · 19013

Aliquot sum (sum of proper divisors): 1

Factor pairs (a × b = 19,013)

1 × 19013

First multiples

19,013 · 38,026 (double) · 57,039 · 76,052 · 95,065 · 114,078 · 133,091 · 152,104 · 171,117 · 190,130

Sums & aliquot sequence

As a sum of two squares: 97² + 98²

As consecutive integers: 9,506 + 9,507

Representations

In words: nineteen thousand thirteen
Ordinal: 19013th
Binary: 100101001000101
Octal: 45105
Hexadecimal: 0x4A45
Base64: SkU=
One's complement: 46,522 (16-bit)

In other bases

ternary (3) 222002012

quaternary (4) 10221011

quinary (5) 1102023

senary (6) 224005

septenary (7) 106301

nonary (9) 28065

undecimal (11) 13315

duodecimal (12) b005

tridecimal (13) 8867

tetradecimal (14) 6d01

pentadecimal (15) 5978

Historical numeral systems

Babylonian (base 60): 𒁹𒁹𒁹𒁹𒁹 𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹
Egyptian hieroglyphic: 𓂍𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓆼𓎆𓏺𓏺𓏺
Greek (Milesian): ͵ιθιγʹ
Mayan (base 20): 𝋢·𝋧·𝋪·𝋭
Chinese: 一萬九千零一十三
Chinese (financial): 壹萬玖仟零壹拾參

In other modern scripts

Eastern Arabic ١٩٠١٣ Devanagari १९०१३ Bengali ১৯০১৩ Tamil ௧௯௦௧௩ Thai ๑๙๐๑๓ Tibetan ༡༩༠༡༣ Khmer ១៩០១៣ Lao ໑໙໐໑໓ Burmese ၁၉၀၁၃

Digit at this position in famous constants

π — Pi (π): Digit 19,013 = 3
e — Euler's number (e): Digit 19,013 = 7
φ — Golden ratio (φ): Digit 19,013 = 5
√2 — Pythagoras's (√2): Digit 19,013 = 0
ln 2 — Natural log of 2: Digit 19,013 = 1
γ — Euler-Mascheroni (γ): Digit 19,013 = 3

Also seen as

Prime neighborhood

Adjacent primes:

Previous prime: 19,009 (gap of 4)
Next prime: 19,031 (gap of 18)

Pair status: cousin with 19009.

Unicode codepoint

䩅

CJK Unified Ideograph-4A45

U+4A45

Other letter (Lo)

UTF-8 encoding: E4 A9 85 (3 bytes).

Lookup U+4A45 on Compart ↗ Lookup on FileFormat.Info ↗

Hex color

#004A45

RGB(0, 74, 69)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.74.69.

Address: 0.0.74.69
Class: reserved
IPv4-mapped IPv6: ::ffff:0.0.74.69

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

Position in π

The digit sequence 19013 first appears in π at position 316,304 of the decimal expansion (the 316,304ordinal-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 19013 on Pi Search ↗