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20301121223 = 73281989671
BaseRepresentation
bin10010111010000010…
…101000011011000111
31221101211010210220122
4102322002220123013
5313034041334343
613154243252155
71316036453225
oct227202503307
957354123818
1020301121223
1186784a9939
123b2697a05b
131bb6ba8b86
14da82abb15
157dc3ec068
hex4ba0a86c7

20301121223 has 8 divisors (see below), whose sum is σ = 20652475296. Its totient is φ = 19951747200.

The previous prime is 20301121213. The next prime is 20301121231. The reversal of 20301121223 is 32212110302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20301121223 - 212 = 20301117127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20301121213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 474323 + ... + 515348.

It is an arithmetic number, because the mean of its divisors is an integer number (2581559412).

Almost surely, 220301121223 is an apocalyptic number.

20301121223 is a deficient number, since it is larger than the sum of its proper divisors (351354073).

20301121223 is an equidigital number, since it uses as much as digits as its factorization.

20301121223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 990025.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 20301121223 its reverse (32212110302), we get a palindrome (52513231525).

The spelling of 20301121223 in words is "twenty billion, three hundred one million, one hundred twenty-one thousand, two hundred twenty-three".

Divisors: 1 73 281 20513 989671 72245983 278097551 20301121223