number.wiki
Live analysis

22,001

22,001 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 Recamán's Sequence

Properties

Parity
Odd
Digit count
5
Digit sum
5
Digit product
0
Digital root
5
Palindrome
No
Bit width
15 bits
Reversed
10,022
Recamán's sequence
a(167,761) = 22,001
Square (n²)
484,044,001
Cube (n³)
10,649,452,066,001
Divisor count
6
σ(n) — sum of divisors
25,650
φ(n) — Euler's totient
18,816
Sum of prime factors
463

Primality

Prime factorization: 7 2 × 449

Nearest primes: 21,997 (−4) · 22,003 (+2)

Divisors & multiples

All divisors (6)
1 · 7 · 49 · 449 · 3143 · 22001
Aliquot sum (sum of proper divisors): 3,649
Factor pairs (a × b = 22,001)
1 × 22001
7 × 3143
49 × 449
First multiples
22,001 · 44,002 (double) · 66,003 · 88,004 · 110,005 · 132,006 · 154,007 · 176,008 · 198,009 · 220,010

Sums & aliquot sequence

As a sum of two squares: 49² + 140²
As consecutive integers: 11,000 + 11,001 3,140 + 3,141 + … + 3,146 1,565 + 1,566 + … + 1,578 425 + 426 + … + 473
Aliquot sequence: 22,001 3,649 131 1 0 — terminates at zero

Representations

In words
twenty-two thousand one
Ordinal
22001st
Binary
101010111110001
Octal
52761
Hexadecimal
0x55F1
Base64
VfE=
One's complement
43,534 (16-bit)
In other bases
ternary (3) 1010011212
quaternary (4) 11113301
quinary (5) 1201001
senary (6) 245505
septenary (7) 121100
nonary (9) 33155
undecimal (11) 15591
duodecimal (12) 10895
tridecimal (13) a025
tetradecimal (14) 8037
pentadecimal (15) 67bb

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹
Egyptian hieroglyphic
𓂍𓂍𓆼𓆼𓏺
Greek (Milesian)
͵κβαʹ
Mayan (base 20)
𝋢·𝋯·𝋠·𝋡
Chinese
二萬二千零一
Chinese (financial)
貳萬貳仟零壹
In other modern scripts
Eastern Arabic ٢٢٠٠١ Devanagari २२००१ Bengali ২২০০১ Tamil ௨௨௦௦௧ Thai ๒๒๐๐๑ Tibetan ༢༢༠༠༡ Khmer ២២០០១ Lao ໒໒໐໐໑ Burmese ၂၂၀၀၁

Digit at this position in famous constants

π — Pi (π)
Digit 22,001 = 7
e — Euler's number (e)
Digit 22,001 = 5
φ — Golden ratio (φ)
Digit 22,001 = 8
√2 — Pythagoras's (√2)
Digit 22,001 = 2
ln 2 — Natural log of 2
Digit 22,001 = 4
γ — Euler-Mascheroni (γ)
Digit 22,001 = 8

Also seen as

Unicode codepoint
CJK Unified Ideograph-55F1
U+55F1
Other letter (Lo)

UTF-8 encoding: E5 97 B1 (3 bytes).

Hex color
#0055F1
RGB(0, 85, 241)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.85.241.

Address
0.0.85.241
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.85.241

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

Position in π

The digit sequence 22001 first appears in π at position 154,980 of the decimal expansion (the 154,980ordinal-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.