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23153230215 = 335976592683
BaseRepresentation
bin10101100100000010…
…100100000110000111
32012202120212221221000
4111210002210012013
5334404211331330
614345250024343
71446521131623
oct254402440607
965676787830
1023153230215
119901438605
1245a1b780b3
13224ca4c42b
141198db8183
159079cb560
hex5640a4187

23153230215 has 64 divisors (see below), whose sum is σ = 41664268800. Its totient is φ = 12197993472.

The previous prime is 23153230187. The next prime is 23153230249. The reversal of 23153230215 is 51203235132.

It is a happy number.

23153230215 is a `hidden beast` number, since 2 + 315 + 32 + 302 + 15 = 666.

It is not a de Polignac number, because 23153230215 - 26 = 23153230151 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8628264 + ... + 8630946.

It is an arithmetic number, because the mean of its divisors is an integer number (651004200).

Almost surely, 223153230215 is an apocalyptic number.

23153230215 is a deficient number, since it is larger than the sum of its proper divisors (18511038585).

23153230215 is a wasteful number, since it uses less digits than its factorization.

23153230215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3453 (or 3447 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

Adding to 23153230215 its reverse (51203235132), we get a palindrome (74356465347).

The spelling of 23153230215 in words is "twenty-three billion, one hundred fifty-three million, two hundred thirty thousand, two hundred fifteen".

Divisors: 1 3 5 9 15 27 45 97 135 291 485 659 873 1455 1977 2619 2683 3295 4365 5931 8049 9885 13095 13415 17793 24147 29655 40245 63923 72441 88965 120735 191769 260251 319615 362205 575307 780753 958845 1301255 1725921 1768097 2342259 2876535 3903765 5304291 7026777 8629605 8840485 11711295 15912873 26521455 35133885 47738619 79564365 171505409 238693095 514516227 857527045 1543548681 2572581135 4630646043 7717743405 23153230215