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23153305 = 571937941
BaseRepresentation
bin101100001010…
…0101010011001
31121120022100211
41120110222121
521411401210
62144131121
7400541230
oct130245231
947508324
1023153305
111208446a
127906aa1
134a487a6
143109b17
15207538a
hex1614a99

23153305 has 32 divisors (see below), whose sum is σ = 34364160. Its totient is φ = 14618880.

The previous prime is 23153297. The next prime is 23153321. The reversal of 23153305 is 50335132.

It is a happy number.

It is not a de Polignac number, because 23153305 - 23 = 23153297 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24135 + ... + 25075.

It is an arithmetic number, because the mean of its divisors is an integer number (1073880).

Almost surely, 223153305 is an apocalyptic number.

It is an amenable number.

23153305 is a deficient number, since it is larger than the sum of its proper divisors (11210855).

23153305 is a wasteful number, since it uses less digits than its factorization.

23153305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1009.

The product of its (nonzero) digits is 1350, while the sum is 22.

The square root of 23153305 is about 4811.7881291678. The cubic root of 23153305 is about 285.0171529637.

Adding to 23153305 its reverse (50335132), we get a palindrome (73488437).

The spelling of 23153305 in words is "twenty-three million, one hundred fifty-three thousand, three hundred five".

Divisors: 1 5 7 19 35 37 95 133 185 259 665 703 941 1295 3515 4705 4921 6587 17879 24605 32935 34817 89395 125153 174085 243719 625765 661523 1218595 3307615 4630661 23153305