Number

90,121

90,121 is a prime, odd.

Arithmetic Number Deficient Number Emirp Odious Number Pernicious Number Prime Pythagorean Prime Sexy Prime Squarefree

Properties

Parity: Odd
Digit count: 5
Digit sum: 13
Digit product: 0
Digital root: 4
Palindrome: No
Bit width: 17 bits
Reversed: 12,109
Square (n²): 8,121,794,641
Cube (n³): 731,944,254,841,561
Divisor count: 2
σ(n) — sum of divisors: 90,122
φ(n) — Euler's totient: 90,120

Primality

90,121 is prime. It has exactly two divisors: 1 and itself.

Divisors & multiples

All divisors (2)

1 · 90121

Aliquot sum (sum of proper divisors): 1

Factor pairs (a × b = 90,121)

1 × 90121

First multiples

90,121 · 180,242 (double) · 270,363 · 360,484 · 450,605 · 540,726 · 630,847 · 720,968 · 811,089 · 901,210

Sums & aliquot sequence

As a sum of two squares: 11² + 300²

As consecutive integers: 45,060 + 45,061

Representations

In words: ninety thousand one hundred twenty-one
Ordinal: 90121st
Binary: 10110000000001001
Octal: 260011
Hexadecimal: 0x16009
Base64: AWAJ
One's complement: 4,294,877,174 (32-bit)

In other bases

ternary (3) 11120121211

quaternary (4) 112000021

quinary (5) 10340441

senary (6) 1533121

septenary (7) 523513

nonary (9) 146554

undecimal (11) 61789

duodecimal (12) 441a1

tridecimal (13) 32035

tetradecimal (14) 24bb3

pentadecimal (15) 1ba81

Historical numeral systems

Babylonian (base 60): 𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒁹𒁹 𒁹
Egyptian hieroglyphic: 𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓂍𓍢𓎆𓎆𓏺
Greek (Milesian): ͵ϟρκαʹ
Mayan (base 20): 𝋫·𝋥·𝋦·𝋡
Chinese: 九萬零一百二十一
Chinese (financial): 玖萬零壹佰貳拾壹

In other modern scripts

Eastern Arabic ٩٠١٢١ Devanagari ९०१२१ Bengali ৯০১২১ Tamil ௯௦௧௨௧ Thai ๙๐๑๒๑ Tibetan ༩༠༡༢༡ Khmer ៩០១២១ Lao ໙໐໑໒໑ Burmese ၉၀၁၂၁

Digit at this position in famous constants

π — Pi (π): Digit 90,121 = 3
e — Euler's number (e): Digit 90,121 = 2
φ — Golden ratio (φ): Digit 90,121 = 8
√2 — Pythagoras's (√2): Digit 90,121 = 5
ln 2 — Natural log of 2: Digit 90,121 = 6
γ — Euler-Mascheroni (γ): Digit 90,121 = 4

Also seen as

Prime neighborhood

Adjacent primes:

Previous prime: 90,107 (gap of 14)
Next prime: 90,127 (gap of 6)

Pair status: sexy with 90127.

Hex color

#016009

RGB(1, 96, 9)

IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.1.96.9.

Address: 0.1.96.9
Class: reserved
IPv4-mapped IPv6: ::ffff:0.1.96.9

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

Position in π

The digit sequence 90121 first appears in π at position 90,301 of the decimal expansion (the 90,301ordinal-suffix:st 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.

Look up 90121 on Pi Search ↗