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42,025

42,025 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.).
Deficient Number Evil Number Happy Number Perfect Square Powerful Number Recamán's Sequence

Properties

Parity
Odd
Digit count
5
Digit sum
13
Digit product
0
Digital root
4
Palindrome
No
Bit width
16 bits
Reversed
52,024
Recamán's sequence
a(151,573) = 42,025
Square (n²)
1,766,100,625
Cube (n³)
74,220,378,765,625
Square root (√n)
205
Divisor count
9
σ(n) — sum of divisors
53,413
φ(n) — Euler's totient
32,800
Sum of prime factors
92

Primality

Prime factorization: 5 2 × 41 2

Nearest primes: 42,023 (−2) · 42,043 (+18)

Divisors & multiples

All divisors (9)
1 · 5 · 25 · 41 · 205 · 1025 · 1681 · 8405 · 42025
Aliquot sum (sum of proper divisors): 11,388
Factor pairs (a × b = 42,025)
1 × 42025
5 × 8405
25 × 1681
41 × 1025
205 × 205
First multiples
42,025 · 84,050 (double) · 126,075 · 168,100 · 210,125 · 252,150 · 294,175 · 336,200 · 378,225 · 420,250

Sums & aliquot sequence

As a sum of two squares: 0² + 205² = 45² + 200² = 84² + 187² = 123² + 164²
As consecutive integers: 21,012 + 21,013 8,403 + 8,404 + 8,405 + 8,406 + 8,407 4,198 + 4,199 + … + 4,207 1,669 + 1,670 + … + 1,693
Aliquot sequence: 42,025 11,388 17,620 19,424 18,880 26,840 40,120 57,080 71,440 107,120 163,696 178,296 340,104 535,416 994,824 1,773,396 2,709,446 — unresolved within range

Representations

In words
forty-two thousand twenty-five
Ordinal
42025th
Binary
1010010000101001
Octal
122051
Hexadecimal
0xA429
Base64
pCk=
One's complement
23,510 (16-bit)
In other bases
ternary (3) 2010122111
quaternary (4) 22100221
quinary (5) 2321100
senary (6) 522321
septenary (7) 233344
nonary (9) 63574
undecimal (11) 29635
duodecimal (12) 203a1
tridecimal (13) 16189
tetradecimal (14) 1145b
pentadecimal (15) c6ba

Historical numeral systems

Babylonian (base 60)
𒌋𒁹 𒌋𒌋𒌋𒌋 𒌋𒌋𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓂍𓂍𓂍𓂍𓆼𓆼𓎆𓎆𓏺𓏺𓏺𓏺𓏺
Greek (Milesian)
͵μβκεʹ
Mayan (base 20)
𝋥·𝋥·𝋡·𝋥
Chinese
四萬二千零二十五
Chinese (financial)
肆萬貳仟零貳拾伍
In other modern scripts
Eastern Arabic ٤٢٠٢٥ Devanagari ४२०२५ Bengali ৪২০২৫ Tamil ௪௨௦௨௫ Thai ๔๒๐๒๕ Tibetan ༤༢༠༢༥ Khmer ៤២០២៥ Lao ໔໒໐໒໕ Burmese ၄၂၀၂၅

Digit at this position in famous constants

π — Pi (π)
Digit 42,025 = 4
e — Euler's number (e)
Digit 42,025 = 1
φ — Golden ratio (φ)
Digit 42,025 = 9
√2 — Pythagoras's (√2)
Digit 42,025 = 1
ln 2 — Natural log of 2
Digit 42,025 = 2
γ — Euler-Mascheroni (γ)
Digit 42,025 = 0

Also seen as

Unicode codepoint
Yi Syllable Jju
U+A429
Other letter (Lo)

UTF-8 encoding: EA 90 A9 (3 bytes).

Hex color
#00A429
RGB(0, 164, 41)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.164.41.

Address
0.0.164.41
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.164.41

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

Position in π

The digit sequence 42025 first appears in π at position 86,855 of the decimal expansion (the 86,855ordinal-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.