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23034021213 = 371318372963
BaseRepresentation
bin10101011100111011…
…110100010101011101
32012110021120111220210
4111130323310111131
5334133202134323
614325351003033
71443542643540
oct253473642535
965407514823
1023034021213
119850117075
12456a069479
132231141568
141187226857
158ec2d0293
hex55cef455d

23034021213 has 16 divisors (see below), whose sum is σ = 35367399936. Its totient is φ = 13061820720.

The previous prime is 23034021167. The next prime is 23034021229. The reversal of 23034021213 is 31212043032.

It is not a de Polignac number, because 23034021213 - 26 = 23034021149 is a prime.

It is a super-2 number, since 2×230340212132 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 23034021213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23034021713) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4183731 + ... + 4189232.

It is an arithmetic number, because the mean of its divisors is an integer number (2210462496).

Almost surely, 223034021213 is an apocalyptic number.

It is an amenable number.

23034021213 is a deficient number, since it is larger than the sum of its proper divisors (12333378723).

23034021213 is a wasteful number, since it uses less digits than its factorization.

23034021213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8373104.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 23034021213 its reverse (31212043032), we get a palindrome (54246064245).

The spelling of 23034021213 in words is "twenty-three billion, thirty-four million, twenty-one thousand, two hundred thirteen".

Divisors: 1 3 7 21 131 393 917 2751 8372963 25118889 58610741 175832223 1096858153 3290574459 7678007071 23034021213