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23030344221 = 317380954851
BaseRepresentation
bin10101011100101101…
…110010101000011101
32012110000122201000220
4111130231302220131
5334131232003341
614325140111553
71443466460463
oct253455625035
965400581026
1023030344221
119849035535
1245689955b9
132230454a21
14118694a833
158ebd05a66
hex55cb72a1d

23030344221 has 16 divisors (see below), whose sum is σ = 30923363520. Its totient is φ = 15245667200.

The previous prime is 23030344217. The next prime is 23030344231. The reversal of 23030344221 is 12244303032.

It is a cyclic number.

It is not a de Polignac number, because 23030344221 - 22 = 23030344217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23030344191 and 23030344200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23030344231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 392446 + ... + 447296.

It is an arithmetic number, because the mean of its divisors is an integer number (1932710220).

Almost surely, 223030344221 is an apocalyptic number.

It is an amenable number.

23030344221 is a deficient number, since it is larger than the sum of its proper divisors (7893019299).

23030344221 is a wasteful number, since it uses less digits than its factorization.

23030344221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55836.

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 23030344221 its reverse (12244303032), we get a palindrome (35274647253).

The spelling of 23030344221 in words is "twenty-three billion, thirty million, three hundred forty-four thousand, two hundred twenty-one".

Divisors: 1 3 173 519 809 2427 54851 139957 164553 419871 9489223 28467669 44374459 133123377 7676781407 23030344221