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Number

60,661

60,661 is a prime, odd.

Arithmetic Number Deficient Number Flippable Happy Number Odious Number Pernicious Number Prime Pythagorean Prime Recamán's Sequence Squarefree Twin Prime

Properties

Parity
Odd
Digit count
5
Digit sum
19
Digit product
0
Digital root
1
Palindrome
No
Bit width
16 bits
Reversed
16,606
Flips to (rotate 180°)
19,909
Recamán's sequence
a(137,089) = 60,661
Square (n²)
3,679,756,921
Cube (n³)
223,217,734,584,781
Divisor count
2
σ(n) — sum of divisors
60,662
φ(n) — Euler's totient
60,660

Primality

60,661 is prime. It has exactly two divisors: 1 and itself.

Divisors & multiples

All divisors (2)
1 · 60661
Aliquot sum (sum of proper divisors): 1
Factor pairs (a × b = 60,661)
1 × 60661
First multiples
60,661 · 121,322 (double) · 181,983 · 242,644 · 303,305 · 363,966 · 424,627 · 485,288 · 545,949 · 606,610

Sums & aliquot sequence

As a sum of two squares: 135² + 206²
As consecutive integers: 30,330 + 30,331

Representations

In words
sixty thousand six hundred sixty-one
Ordinal
60661st
Binary
1110110011110101
Octal
166365
Hexadecimal
0xECF5
Base64
7PU=
One's complement
4,874 (16-bit)
In other bases
ternary (3) 10002012201
quaternary (4) 32303311
quinary (5) 3420121
senary (6) 1144501
septenary (7) 341566
nonary (9) 102181
undecimal (11) 41637
duodecimal (12) 2b131
tridecimal (13) 217c3
tetradecimal (14) 1816d
pentadecimal (15) 12e91

Historical numeral systems

Babylonian (base 60)
𒌋𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹 𒁹
Egyptian hieroglyphic
𓂍𓂍𓂍𓂍𓂍𓂍𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓎆𓎆𓏺
Greek (Milesian)
͵ξχξαʹ
Mayan (base 20)
𝋧·𝋫·𝋭·𝋡
Chinese
六萬零六百六十一
Chinese (financial)
陸萬零陸佰陸拾壹
In other modern scripts
Eastern Arabic ٦٠٦٦١ Devanagari ६०६६१ Bengali ৬০৬৬১ Tamil ௬௦௬௬௧ Thai ๖๐๖๖๑ Tibetan ༦༠༦༦༡ Khmer ៦០៦៦១ Lao ໖໐໖໖໑ Burmese ၆၀၆၆၁

Digit at this position in famous constants

π — Pi (π)
Digit 60,661 = 0
e — Euler's number (e)
Digit 60,661 = 7
φ — Golden ratio (φ)
Digit 60,661 = 1
√2 — Pythagoras's (√2)
Digit 60,661 = 2
ln 2 — Natural log of 2
Digit 60,661 = 3
γ — Euler-Mascheroni (γ)
Digit 60,661 = 2

Also seen as

Prime neighborhood

Adjacent primes:

  • Previous prime: 60,659 (gap of 2)
  • Next prime: 60,679 (gap of 18)

Pair status: twin with 60659.

Hex color
#00ECF5
RGB(0, 236, 245)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.236.245.

Address
0.0.236.245
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.236.245

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

Position in π

The digit sequence 60661 first appears in π at position 118,883 of the decimal expansion (the 118,883ordinal-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.