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100,745

100,745 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 Cube-Free Deficient Number Happy Number Odious Number Pernicious Number Recamán's Sequence Semiprime Squarefree

Properties

Parity
Odd
Digit count
6
Digit sum
17
Digit product
0
Digital root
8
Palindrome
No
Bit width
17 bits
Reversed
547,001
Recamán's sequence
a(255,226) = 100,745
Square (n²)
10,149,555,025
Cube (n³)
1,022,516,920,993,625
Divisor count
4
σ(n) — sum of divisors
120,900
φ(n) — Euler's totient
80,592
Sum of prime factors
20,154

Primality

Prime factorization: 5 × 20149

Nearest primes: 100,741 (−4) · 100,747 (+2)

Divisors & multiples

All divisors (4)
1 · 5 · 20149 · 100745
Aliquot sum (sum of proper divisors): 20,155
Factor pairs (a × b = 100,745)
1 × 100745
5 × 20149
First multiples
100,745 · 201,490 (double) · 302,235 · 402,980 · 503,725 · 604,470 · 705,215 · 805,960 · 906,705 · 1,007,450

Sums & aliquot sequence

As a sum of two squares: 16² + 317² = 203² + 244²
As consecutive integers: 50,372 + 50,373 20,147 + 20,148 + 20,149 + 20,150 + 20,151 10,070 + 10,071 + … + 10,079
Aliquot sequence: 100,745 20,155 5,045 1,015 425 133 27 13 1 0 — terminates at zero

Continued fraction of √n

√100,745 = [317; (2, 2, 10, 1, 14, 1, 1, 3, 33, 7, 1, 9, 1, 1, 7, 1, 1, 21, 2, 1, 3, 1, 2, 2, …)]

Representations

In words
one hundred thousand seven hundred forty-five
Ordinal
100745th
Binary
11000100110001001
Octal
304611
Hexadecimal
0x18989
Base64
AYmJ
One's complement
4,294,866,550 (32-bit)
Scientific notation
1.00745 × 10⁵
In other bases
ternary (3) 12010012022
quaternary (4) 120212021
quinary (5) 11210440
senary (6) 2054225
septenary (7) 566501
nonary (9) 163168
undecimal (11) 69767
duodecimal (12) 4a375
tridecimal (13) 36b18
tetradecimal (14) 28a01
pentadecimal (15) 1ecb5
Palindromic in base 4

Historical numeral systems

Babylonian (base 60)
𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓆐𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓎆𓎆𓎆𓎆𓏺𓏺𓏺𓏺𓏺
Greek (Milesian)
͵ρψμεʹ
Mayan (base 20)
𝋬·𝋫·𝋱·𝋥
Chinese
一十萬零七百四十五
Chinese (financial)
壹拾萬零柒佰肆拾伍
In other modern scripts
Eastern Arabic ١٠٠٧٤٥ Devanagari १००७४५ Bengali ১০০৭৪৫ Tamil ௧௦௦௭௪௫ Thai ๑๐๐๗๔๕ Tibetan ༡༠༠༧༤༥ Khmer ១០០៧៤៥ Lao ໑໐໐໗໔໕ Burmese ၁၀၀၇၄၅

Also seen as

Unicode codepoint
𘦉
Tangut Component-394
U+18989
Other letter (Lo)

UTF-8 encoding: F0 98 A6 89 (4 bytes).

Hex color
#018989
RGB(1, 137, 137)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.1.137.137.

Address
0.1.137.137
Class
reserved
IPv4-mapped IPv6
::ffff:0.1.137.137

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 100,745 and was likely granted around 1870.

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

Position in π

The digit sequence 100745 first appears in π at position 238,040 of the decimal expansion (the 238,040ordinal-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.