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23225234155 = 5191321185069
BaseRepresentation
bin10101101000010101…
…001111001011101011
32012221121101010202121
4111220111033023223
5340031124443110
614400341212111
71451354142634
oct255025171353
965847333677
1023225234155
1199390481a2
124602101037
132261940106
1411a479c88b
1590dea0cda
hex56854f2eb

23225234155 has 16 divisors (see below), whose sum is σ = 29359504800. Its totient is φ = 17588862720.

The previous prime is 23225234059. The next prime is 23225234159. The reversal of 23225234155 is 55143252232.

It is not a de Polignac number, because 23225234155 - 213 = 23225225963 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23225234155.

It is not an unprimeable number, because it can be changed into a prime (23225234159) 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, 32961 + ... + 218029.

It is an arithmetic number, because the mean of its divisors is an integer number (1834969050).

Almost surely, 223225234155 is an apocalyptic number.

23225234155 is a deficient number, since it is larger than the sum of its proper divisors (6134270645).

23225234155 is a wasteful number, since it uses less digits than its factorization.

23225234155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186414.

The product of its digits is 72000, while the sum is 34.

Adding to 23225234155 its reverse (55143252232), we get a palindrome (78368486387).

The spelling of 23225234155 in words is "twenty-three billion, two hundred twenty-five million, two hundred thirty-four thousand, one hundred fifty-five".

Divisors: 1 5 19 95 1321 6605 25099 125495 185069 925345 3516311 17581555 244476149 1222380745 4645046831 23225234155