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20301331423 = 109311598877
BaseRepresentation
bin10010111010000011…
…011011101111011111
31221101211112111020211
4102322003123233133
5313034120101143
613154251553251
71316041320112
oct227203335737
957354474224
1020301331423
11867863285a
123b26a5b827
131bb6c50759
14da8324579
157dc43e49d
hex4ba0dbbdf

20301331423 has 8 divisors (see below), whose sum is σ = 20553492960. Its totient is φ = 20050368480.

The previous prime is 20301331399. The next prime is 20301331471. The reversal of 20301331423 is 32413310302.

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 20301331423 - 29 = 20301330911 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20301331394 and 20301331403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20301331123) 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, 265540 + ... + 333337.

It is an arithmetic number, because the mean of its divisors is an integer number (2569186620).

Almost surely, 220301331423 is an apocalyptic number.

20301331423 is a deficient number, since it is larger than the sum of its proper divisors (252161537).

20301331423 is a wasteful number, since it uses less digits than its factorization.

20301331423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 599297.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 20301331423 its reverse (32413310302), we get a palindrome (52714641725).

The spelling of 20301331423 in words is "twenty billion, three hundred one million, three hundred thirty-one thousand, four hundred twenty-three".

Divisors: 1 109 311 33899 598877 65277593 186250747 20301331423