Number 1820, number theory characteristics and more…

Visual representations

Binary image (n×n bits)

Pentagonal · P₅(35) = 1820

Prime factorization

Representations of 1820

Greek numeral

͵αωκ

Sanskrit numeral

१८२०

Arabic numeral

١٨٢٠

Roman numeral

MDCCCXX

Maya numeral

●●●●

●
▃▃▃▃▃
▃▃▃▃▃

ↂ

Chinese numeral

一千八百二十

Hebrew numeral

א׳ תתכ

Egyptian numeral

𓆼
𓈖𓈖𓈖𓈖𓈖𓈖𓈖𓈖
𓎆𓎆

Morse code

.-------....--------

1820 in different numeral systems

Binary

11100011100

Base-3

Base-4

Base-5

Base-6

Base-7

Base-8

Duodecimal

Hex

71c

Vigesimal

4b0

Base-24

33k

Base-36

1ek

Negabinary

1101101101100

Factorization

Prime factors: 2, 5, 7, 13

Divisors: 1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820

Sum of divisors other than 1820: 2884

Product of prime factors: 1820 = 2 × 2 × 5 × 7 × 13

Number-theory characteristics (6)

Pentagonal Difference of 2 squares Evil number Even Composite Abundant

Base-10 digit properties (1)

These depend on the decimal representation of the number.

Duck number

Related primes

Number 1820 prime

15607

Prime number before 1820

1811

Prime number after 1820

1823