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23020210021 = 38382972503
BaseRepresentation
bin10101011100000111…
…001000011101100101
32012102022120211112011
4111130013020131211
5334121133210041
614324134554221
71443314361634
oct253407103545
965368524464
1023020210021
119843343566
124565508971
13222b317063
14118546d51b
158eaea2e81
hex55c1c8765

23020210021 has 8 divisors (see below), whose sum is σ = 23108474880. Its totient is φ = 22932092592.

The previous prime is 23020209997. The next prime is 23020210027. The reversal of 23020210021 is 12001202032.

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 23020210021 - 227 = 22885992293 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23020209983 and 23020210010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23020210027) 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 7 ways as a sum of consecutive naturals, for example, 281256 + ... + 353758.

It is an arithmetic number, because the mean of its divisors is an integer number (2888559360).

Almost surely, 223020210021 is an apocalyptic number.

It is an amenable number.

23020210021 is a deficient number, since it is larger than the sum of its proper divisors (88264859).

23020210021 is an equidigital number, since it uses as much as digits as its factorization.

23020210021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73715.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 23020210021 its reverse (12001202032), we get a palindrome (35021412053).

The spelling of 23020210021 in words is "twenty-three billion, twenty million, two hundred ten thousand, twenty-one".

Divisors: 1 383 829 72503 317507 27768649 60104987 23020210021