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20302010203 = 23387133091
BaseRepresentation
bin10010111010000110…
…000001011101011011
31221101212210222100211
4102322012001131123
5313034303311303
613154314311551
71316050145056
oct227206013533
957355728324
1020302010203
118678a56832
123b271285b7
131bb712a6b7
14da845da9d
157dc52566d
hex4ba18175b

20302010203 has 4 divisors (see below), whose sum is σ = 20389143528. Its totient is φ = 20214876880.

The previous prime is 20302010189. The next prime is 20302010213. The reversal of 20302010203 is 30201020302.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20302010203 - 25 = 20302010171 is a prime.

It is a super-2 number, since 2×203020102032 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20302010213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43566313 + ... + 43566778.

It is an arithmetic number, because the mean of its divisors is an integer number (5097285882).

Almost surely, 220302010203 is an apocalyptic number.

20302010203 is a deficient number, since it is larger than the sum of its proper divisors (87133325).

20302010203 is an equidigital number, since it uses as much as digits as its factorization.

20302010203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87133324.

The product of its (nonzero) digits is 72, while the sum is 13.

Adding to 20302010203 its reverse (30201020302), we get a palindrome (50503030505).

The spelling of 20302010203 in words is "twenty billion, three hundred two million, ten thousand, two hundred three".

Divisors: 1 233 87133091 20302010203