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64,121

64,121 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.).
Arithmetic Number Deficient Number Odious Number Pernicious Number Recamán's Sequence Semiprime Squarefree

Properties

Parity
Odd
Digit count
5
Digit sum
14
Digit product
48
Digital root
5
Palindrome
No
Bit width
16 bits
Reversed
12,146
Recamán's sequence
a(286,658) = 64,121
Square (n²)
4,111,502,641
Cube (n³)
263,633,660,843,561
Divisor count
4
σ(n) — sum of divisors
65,892
φ(n) — Euler's totient
62,352
Sum of prime factors
1,770

Primality

Prime factorization: 37 × 1733

Nearest primes: 64,109 (−12) · 64,123 (+2)

Divisors & multiples

All divisors (4)
1 · 37 · 1733 · 64121
Aliquot sum (sum of proper divisors): 1,771
Factor pairs (a × b = 64,121)
1 × 64121
37 × 1733
First multiples
64,121 · 128,242 (double) · 192,363 · 256,484 · 320,605 · 384,726 · 448,847 · 512,968 · 577,089 · 641,210

Sums & aliquot sequence

As a sum of two squares: 64² + 245² = 140² + 211²
As consecutive integers: 32,060 + 32,061 1,715 + 1,716 + … + 1,751 830 + 831 + … + 903
Aliquot sequence: 64,121 1,771 533 55 17 1 0 — terminates at zero

Representations

In words
sixty-four thousand one hundred twenty-one
Ordinal
64121st
Binary
1111101001111001
Octal
175171
Hexadecimal
0xFA79
Base64
+nk=
One's complement
1,414 (16-bit)
In other bases
ternary (3) 10020221212
quaternary (4) 33221321
quinary (5) 4022441
senary (6) 1212505
septenary (7) 354641
nonary (9) 106855
undecimal (11) 441a2
duodecimal (12) 31135
tridecimal (13) 23255
tetradecimal (14) 19521
pentadecimal (15) 13eeb

Historical numeral systems

Babylonian (base 60)
𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹
Egyptian hieroglyphic
𓂍𓂍𓂍𓂍𓂍𓂍𓆼𓆼𓆼𓆼𓍢𓎆𓎆𓏺
Greek (Milesian)
͵ξδρκαʹ
Mayan (base 20)
𝋨·𝋠·𝋦·𝋡
Chinese
六萬四千一百二十一
Chinese (financial)
陸萬肆仟壹佰貳拾壹
In other modern scripts
Eastern Arabic ٦٤١٢١ Devanagari ६४१२१ Bengali ৬৪১২১ Tamil ௬௪௧௨௧ Thai ๖๔๑๒๑ Tibetan ༦༤༡༢༡ Khmer ៦៤១២១ Lao ໖໔໑໒໑ Burmese ၆၄၁၂၁

Digit at this position in famous constants

π — Pi (π)
Digit 64,121 = 5
e — Euler's number (e)
Digit 64,121 = 8
φ — Golden ratio (φ)
Digit 64,121 = 1
√2 — Pythagoras's (√2)
Digit 64,121 = 8
ln 2 — Natural log of 2
Digit 64,121 = 1
γ — Euler-Mascheroni (γ)
Digit 64,121 = 5

Also seen as

Unicode codepoint
CJK Compatibility Ideograph-Fa79
U+FA79
Other letter (Lo)

UTF-8 encoding: EF A9 B9 (3 bytes).

Hex color
#00FA79
RGB(0, 250, 121)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.250.121.

Address
0.0.250.121
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.250.121

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

Position in π

The digit sequence 64121 first appears in π at position 1,423 of the decimal expansion (the 1,423ordinal-suffix:rd 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.