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Number

42,901

42,901 is a prime, odd.

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

Properties

Parity
Odd
Digit count
5
Digit sum
16
Digit product
0
Digital root
7
Palindrome
No
Bit width
16 bits
Reversed
10,924
Recamán's sequence
a(72,790) = 42,901
Square (n²)
1,840,495,801
Cube (n³)
78,959,110,358,701
Divisor count
2
σ(n) — sum of divisors
42,902
φ(n) — Euler's totient
42,900

Primality

42,901 is prime. It has exactly two divisors: 1 and itself.

Divisors & multiples

All divisors (2)
1 · 42901
Aliquot sum (sum of proper divisors): 1
Factor pairs (a × b = 42,901)
1 × 42901
First multiples
42,901 · 85,802 (double) · 128,703 · 171,604 · 214,505 · 257,406 · 300,307 · 343,208 · 386,109 · 429,010

Sums & aliquot sequence

As a sum of two squares: 50² + 201²
As consecutive integers: 21,450 + 21,451

Representations

In words
forty-two thousand nine hundred one
Ordinal
42901st
Binary
1010011110010101
Octal
123625
Hexadecimal
0xA795
Base64
p5U=
One's complement
22,634 (16-bit)
In other bases
ternary (3) 2011211221
quaternary (4) 22132111
quinary (5) 2333101
senary (6) 530341
septenary (7) 236035
nonary (9) 64757
undecimal (11) 2a261
duodecimal (12) 209b1
tridecimal (13) 166b1
tetradecimal (14) 118c5
pentadecimal (15) caa1

Historical numeral systems

Babylonian (base 60)
𒌋𒁹 𒌋𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹 𒁹
Egyptian hieroglyphic
𓂍𓂍𓂍𓂍𓆼𓆼𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓍢𓏺
Greek (Milesian)
͵μβϡαʹ
Mayan (base 20)
𝋥·𝋧·𝋥·𝋡
Chinese
四萬二千九百零一
Chinese (financial)
肆萬貳仟玖佰零壹
In other modern scripts
Eastern Arabic ٤٢٩٠١ Devanagari ४२९०१ Bengali ৪২৯০১ Tamil ௪௨௯௦௧ Thai ๔๒๙๐๑ Tibetan ༤༢༩༠༡ Khmer ៤២៩០១ Lao ໔໒໙໐໑ Burmese ၄၂၉၀၁

Digit at this position in famous constants

π — Pi (π)
Digit 42,901 = 0
e — Euler's number (e)
Digit 42,901 = 9
φ — Golden ratio (φ)
Digit 42,901 = 2
√2 — Pythagoras's (√2)
Digit 42,901 = 2
ln 2 — Natural log of 2
Digit 42,901 = 2
γ — Euler-Mascheroni (γ)
Digit 42,901 = 8

Also seen as

Prime neighborhood

Adjacent primes:

  • Previous prime: 42,899 (gap of 2)
  • Next prime: 42,923 (gap of 22)

Pair status: twin with 42899.

Unicode codepoint
Latin Small Letter H With Palatal Hook
U+A795
Lowercase letter (Ll)

UTF-8 encoding: EA 9E 95 (3 bytes).

Hex color
#00A795
RGB(0, 167, 149)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.167.149.

Address
0.0.167.149
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.167.149

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

Position in π

The digit sequence 42901 first appears in π at position 79,890 of the decimal expansion (the 79,890ordinal-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.