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20423230001 = 314116068631
BaseRepresentation
bin10011000001010100…
…011100001000110001
31221201022220120122222
4103001110130020301
5313311321330001
613214324410425
71322051406416
oct230124341061
957638816588
1020423230001
118730420a89
123b5b846a15
131c062908a5
14dba5b610d
157e7ebc61b
hex4c151c231

20423230001 has 8 divisors (see below), whose sum is σ = 21596241408. Its totient is φ = 19282356000.

The previous prime is 20423229977. The next prime is 20423230027. The reversal of 20423230001 is 10003232402.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-20423230001 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20423230031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8033045 + ... + 8035586.

It is an arithmetic number, because the mean of its divisors is an integer number (2699530176).

Almost surely, 220423230001 is an apocalyptic number.

It is an amenable number.

20423230001 is a deficient number, since it is larger than the sum of its proper divisors (1173011407).

20423230001 is a wasteful number, since it uses less digits than its factorization.

20423230001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16068703.

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 20423230001 its reverse (10003232402), we get a palindrome (30426462403).

The spelling of 20423230001 in words is "twenty billion, four hundred twenty-three million, two hundred thirty thousand, one".

Divisors: 1 31 41 1271 16068631 498127561 658813871 20423230001