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42,401

42,401 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 Semiprime Squarefree

Properties

Parity
Odd
Digit count
5
Digit sum
11
Digit product
0
Digital root
2
Palindrome
No
Bit width
16 bits
Reversed
10,424
Recamán's sequence
a(150,821) = 42,401
Square (n²)
1,797,844,801
Cube (n³)
76,230,417,407,201
Divisor count
4
σ(n) — sum of divisors
42,900
φ(n) — Euler's totient
41,904
Sum of prime factors
498

Primality

Prime factorization: 109 × 389

Nearest primes: 42,397 (−4) · 42,403 (+2)

Divisors & multiples

All divisors (4)
1 · 109 · 389 · 42401
Aliquot sum (sum of proper divisors): 499
Factor pairs (a × b = 42,401)
1 × 42401
109 × 389
First multiples
42,401 · 84,802 (double) · 127,203 · 169,604 · 212,005 · 254,406 · 296,807 · 339,208 · 381,609 · 424,010

Sums & aliquot sequence

As a sum of two squares: 49² + 200² = 140² + 151²
As consecutive integers: 21,200 + 21,201 335 + 336 + … + 443 86 + 87 + … + 303
Aliquot sequence: 42,401 499 1 0 — terminates at zero

Representations

In words
forty-two thousand four hundred one
Ordinal
42401st
Binary
1010010110100001
Octal
122641
Hexadecimal
0xA5A1
Base64
paE=
One's complement
23,134 (16-bit)
In other bases
ternary (3) 2011011102
quaternary (4) 22112201
quinary (5) 2324101
senary (6) 524145
septenary (7) 234422
nonary (9) 64142
undecimal (11) 29947
duodecimal (12) 20655
tridecimal (13) 163b8
tetradecimal (14) 11649
pentadecimal (15) c86b

Historical numeral systems

Babylonian (base 60)
𒌋𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹
Egyptian hieroglyphic
𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓏺
Greek (Milesian)
͵μβυαʹ
Mayan (base 20)
𝋥·𝋦·𝋠·𝋡
Chinese
四萬二千四百零一
Chinese (financial)
肆萬貳仟肆佰零壹
In other modern scripts
Eastern Arabic ٤٢٤٠١ Devanagari ४२४०१ Bengali ৪২৪০১ Tamil ௪௨௪௦௧ Thai ๔๒๔๐๑ Tibetan ༤༢༤༠༡ Khmer ៤២៤០១ Lao ໔໒໔໐໑ Burmese ၄၂၄၀၁

Digit at this position in famous constants

π — Pi (π)
Digit 42,401 = 5
e — Euler's number (e)
Digit 42,401 = 0
φ — Golden ratio (φ)
Digit 42,401 = 4
√2 — Pythagoras's (√2)
Digit 42,401 = 4
ln 2 — Natural log of 2
Digit 42,401 = 6
γ — Euler-Mascheroni (γ)
Digit 42,401 = 9

Also seen as

Unicode codepoint
Vai Syllable Gbu
U+A5A1
Other letter (Lo)

UTF-8 encoding: EA 96 A1 (3 bytes).

Hex color
#00A5A1
RGB(0, 165, 161)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.165.161.

Address
0.0.165.161
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.165.161

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

Position in π

The digit sequence 42401 first appears in π at position 173,739 of the decimal expansion (the 173,739ordinal-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.