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Live analysis

101,021

101,021 is a prime, 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 Happy Number Prime Sexy Prime Squarefree

Properties

Parity
Odd
Digit count
6
Digit sum
5
Digital root
5
Palindrome
No
Reversed
120,101
Divisor count
2
σ(n) — sum of divisors
101,022

Primality

101,021 is prime. It has exactly two divisors: 1 and itself.

Divisors & multiples

All divisors (2)
1 · 101021
Aliquot sum (sum of proper divisors): 1
Factor pairs (a × b = 101,021)
1 × 101021
First multiples
101,021 · 202,042 · 303,063 · 404,084 · 505,105 · 606,126 · 707,147 · 808,168 · 909,189 · 1,010,210

Representations

In words
one hundred one thousand twenty-one
Ordinal
101021st
Binary
11000101010011101
Octal
305235
Hexadecimal
0x18A9D
Base64
AYqd

Also seen as

Prime neighborhood

Adjacent primes:

Pair status: sexy with 101027.

Unicode codepoint
𘪝
Tangut Component-670
U+18A9D
Other letter (Lo)

UTF-8 encoding: F0 98 AA 9D (4 bytes).

Hex color
#018A9D
RGB(1, 138, 157)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.1.138.157.

Address
0.1.138.157
Class
reserved
IPv4-mapped IPv6
::ffff:0.1.138.157

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

Possible US patent number

This number falls in the range of US utility patent numbers. If it's a patent, it would be issued as US 101,021 and was likely granted around 1870.

Patent numbers below 100,000 are excluded as too ambiguous; modern numbering currently reaches roughly 12.5 million.