Live analysis
42,121
42,121 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.).
Properties
- Parity
- Odd
- Digit count
- 5
- Digit sum
- 10
- Digit product
- 16
- Digital root
- 1
- Palindrome
- No
- Bit width
- 16 bits
- Reversed
- 12,124
- Recamán's sequence
- a(151,381) = 42,121
- Square (n²)
- 1,774,178,641
- Cube (n³)
- 74,730,178,537,561
- Divisor count
- 4
- σ(n) — sum of divisors
- 42,772
- φ(n) — Euler's totient
- 41,472
- Sum of prime factors
- 650
Primality
Prime factorization: 73 × 577
Divisors & multiples
Aliquot sum (sum of proper divisors):
651
First multiples
42,121
·
84,242
(double)
·
126,363
·
168,484
·
210,605
·
252,726
·
294,847
·
336,968
·
379,089
·
421,210
Sums & aliquot sequence
As a sum of two squares:
64² + 195² = 80² + 189²
As consecutive integers:
21,060 + 21,061
541 + 542 + … + 613
216 + 217 + … + 361
Aliquot sequence:
42,121 → 651 → 373 → 1 → 0
— terminates at zero
Representations
- In words
- forty-two thousand one hundred twenty-one
- Ordinal
- 42121st
- Binary
- 1010010010001001
- Octal
- 122211
- Hexadecimal
- 0xA489
- Base64
- pIk=
- One's complement
- 23,414 (16-bit)
In other bases
ternary (3)
2010210001
quaternary (4)
22102021
quinary (5)
2321441
senary (6)
523001
septenary (7)
233542
nonary (9)
63701
undecimal (11)
29712
duodecimal (12)
20461
tridecimal (13)
16231
tetradecimal (14)
114c9
pentadecimal (15)
c731
Historical numeral systems
- Babylonian (base 60)
- 𒌋𒁹 𒌋𒌋𒌋𒌋𒁹𒁹 𒁹
- Egyptian hieroglyphic
- 𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓎆𓎆𓏺
- Greek (Milesian)
- ͵μβρκαʹ
- Mayan (base 20)
- 𝋥·𝋥·𝋦·𝋡
- Chinese
- 四萬二千一百二十一
- Chinese (financial)
- 肆萬貳仟壹佰貳拾壹
In other modern scripts
Eastern Arabic
٤٢١٢١
Devanagari
४२१२१
Bengali
৪২১২১
Tamil
௪௨௧௨௧
Thai
๔๒๑๒๑
Tibetan
༤༢༡༢༡
Khmer
៤២១២១
Lao
໔໒໑໒໑
Burmese
၄၂၁၂၁
Digit at this position in famous constants
- π — Pi (π)
- Digit 42,121 = 0
- e — Euler's number (e)
- Digit 42,121 = 0
- φ — Golden ratio (φ)
- Digit 42,121 = 6
- √2 — Pythagoras's (√2)
- Digit 42,121 = 9
- ln 2 — Natural log of 2
- Digit 42,121 = 7
- γ — Euler-Mascheroni (γ)
- Digit 42,121 = 9
Also seen as
Unicode codepoint
ꒉ
Yi Syllable Yy
U+A489
Other letter (Lo)
UTF-8 encoding: EA 92 89 (3 bytes).
Hex color
#00A489
RGB(0, 164, 137)
IPv4 address
As an unsigned 32-bit integer, this is the IPv4 address 0.0.164.137.
- Address
- 0.0.164.137
- Class
- reserved
- IPv4-mapped IPv6
- ::ffff:0.0.164.137
Unspecified address (0.0.0.0/8) — "this network" placeholder.
Position in π
The digit sequence 42121 first appears in π at position 53,329 of the decimal expansion (the 53,329ordinal-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.