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23130322223 = 83278678581
BaseRepresentation
bin10101100010101011…
…001011010100101111
32012200222210010001212
4111202223023110233
5334332330302343
614343111025035
71446122331521
oct254253132457
965628703055
1023130322223
11989a511488
12459636b17b
13224808b4c8
141195d33a11
159059a3c18
hex562acb52f

23130322223 has 4 divisors (see below), whose sum is σ = 23409000888. Its totient is φ = 22851643560.

The previous prime is 23130322211. The next prime is 23130322261. The reversal of 23130322223 is 32222303132.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23130322223 - 28 = 23130321967 is a prime.

It is a super-2 number, since 2×231303222232 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23130322273) 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 3 ways as a sum of consecutive naturals, for example, 139339208 + ... + 139339373.

It is an arithmetic number, because the mean of its divisors is an integer number (5852250222).

Almost surely, 223130322223 is an apocalyptic number.

23130322223 is a deficient number, since it is larger than the sum of its proper divisors (278678665).

23130322223 is an equidigital number, since it uses as much as digits as its factorization.

23130322223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278678664.

The product of its (nonzero) digits is 2592, while the sum is 23.

Adding to 23130322223 its reverse (32222303132), we get a palindrome (55352625355).

The spelling of 23130322223 in words is "twenty-three billion, one hundred thirty million, three hundred twenty-two thousand, two hundred twenty-three".

Divisors: 1 83 278678581 23130322223