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23203312312 = 234761710937
BaseRepresentation
bin10101100111000001…
…100111001010111000
32012220002010101122111
4111213001213022320
5340010021443222
614354235302104
71450666620565
oct254701471270
965802111574
1023203312312
119927734a74
1245b68aa934
13225a235ccb
1411a18d386c
1590c0c0777
hex5670672b8

23203312312 has 16 divisors (see below), whose sum is σ = 44431875360. Its totient is φ = 11354812224.

The previous prime is 23203312283. The next prime is 23203312333. The reversal of 23203312312 is 21321330232.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 30855093 + ... + 30855844.

It is an arithmetic number, because the mean of its divisors is an integer number (2776992210).

Almost surely, 223203312312 is an apocalyptic number.

It is an amenable number.

23203312312 is a deficient number, since it is larger than the sum of its proper divisors (21228563048).

23203312312 is a wasteful number, since it uses less digits than its factorization.

23203312312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61710990 (or 61710986 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 23203312312 its reverse (21321330232), we get a palindrome (44524642544).

The spelling of 23203312312 in words is "twenty-three billion, two hundred three million, three hundred twelve thousand, three hundred twelve".

Divisors: 1 2 4 8 47 94 188 376 61710937 123421874 246843748 493687496 2900414039 5800828078 11601656156 23203312312