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23281053 = 311816571
BaseRepresentation
bin101100011001…
…1110110011101
31121210210121020
41120303312131
521424443203
62150554353
7401612535
oct130636635
947723536
1023281053
1112161444
1279689b9
134a91993
1431404c5
15209d153
hex1633d9d

23281053 has 8 divisors (see below), whose sum is σ = 31072416. Its totient is φ = 15505200.

The previous prime is 23281039. The next prime is 23281057. The reversal of 23281053 is 35018232.

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

It is not a de Polignac number, because 23281053 - 29 = 23280541 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23281057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 258 + ... + 6828.

It is an arithmetic number, because the mean of its divisors is an integer number (3884052).

Almost surely, 223281053 is an apocalyptic number.

It is an amenable number.

23281053 is a deficient number, since it is larger than the sum of its proper divisors (7791363).

23281053 is a wasteful number, since it uses less digits than its factorization.

23281053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7755.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 23281053 is about 4825.0443521278. The cubic root of 23281053 is about 285.5403844018.

Adding to 23281053 its reverse (35018232), we get a palindrome (58299285).

The spelling of 23281053 in words is "twenty-three million, two hundred eighty-one thousand, fifty-three".

Divisors: 1 3 1181 3543 6571 19713 7760351 23281053