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23113305 = 3252931753
BaseRepresentation
bin101100000101…
…0111001011001
31121111021111100
41120022321121
521404111210
62143222013
7400313505
oct130127131
947437440
1023113305
1112057406
1278a7909
134a33517
1430d9305
1520685c0
hex160ae59

23113305 has 24 divisors (see below), whose sum is σ = 40222728. Its totient is φ = 12278016.

The previous prime is 23113289. The next prime is 23113313. The reversal of 23113305 is 50331132.

It can be written as a sum of positive squares in 4 ways, for example, as 1879641 + 21233664 = 1371^2 + 4608^2 .

It is not a de Polignac number, because 23113305 - 24 = 23113289 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12309 + ... + 14061.

It is an arithmetic number, because the mean of its divisors is an integer number (1675947).

Almost surely, 223113305 is an apocalyptic number.

It is an amenable number.

23113305 is a deficient number, since it is larger than the sum of its proper divisors (17109423).

23113305 is a wasteful number, since it uses less digits than its factorization.

23113305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2057 (or 2054 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 18.

The square root of 23113305 is about 4807.6298734408. The cubic root of 23113305 is about 284.8529250380.

Adding to 23113305 its reverse (50331132), we get a palindrome (73444437).

The spelling of 23113305 in words is "twenty-three million, one hundred thirteen thousand, three hundred five".

Divisors: 1 3 5 9 15 45 293 879 1465 1753 2637 4395 5259 8765 13185 15777 26295 78885 513629 1540887 2568145 4622661 7704435 23113305