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23012203345 = 518125427849
BaseRepresentation
bin10101011011101000…
…100101101101010001
32012101202112001102121
4111123220211231101
5334112111001340
614323251214241
71443156333565
oct253350455521
965352461377
1023012203345
119839874a7a
1245628a7381
132229772891
1411843876a5
158ea42094a
hex55ba25b51

23012203345 has 8 divisors (see below), whose sum is σ = 27767212200. Its totient is φ = 18308050560.

The previous prime is 23012203303. The next prime is 23012203367. The reversal of 23012203345 is 54330221032.

It can be written as a sum of positive squares in 4 ways, for example, as 171321921 + 22840881424 = 13089^2 + 151132^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23012203345 - 213 = 23012195153 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12713020 + ... + 12714829.

It is an arithmetic number, because the mean of its divisors is an integer number (3470901525).

Almost surely, 223012203345 is an apocalyptic number.

It is an amenable number.

23012203345 is a deficient number, since it is larger than the sum of its proper divisors (4755008855).

23012203345 is a wasteful number, since it uses less digits than its factorization.

23012203345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25428035.

The product of its (nonzero) digits is 4320, while the sum is 25.

Adding to 23012203345 its reverse (54330221032), we get a palindrome (77342424377).

The spelling of 23012203345 in words is "twenty-three billion, twelve million, two hundred three thousand, three hundred forty-five".

Divisors: 1 5 181 905 25427849 127139245 4602440669 23012203345