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23985453 = 317470303
BaseRepresentation
bin101101101111…
…1110100101101
31200010120212010
41123133310231
522120013303
62214031433
7410605302
oct133376455
950116763
1023985453
11125a2698
128048579
134c7a49b
1432850a9
15218bc03
hex16dfd2d

23985453 has 8 divisors (see below), whose sum is σ = 33861888. Its totient is φ = 15049664.

The previous prime is 23985439. The next prime is 23985473. The reversal of 23985453 is 35458932.

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

It is a cyclic number.

It is not a de Polignac number, because 23985453 - 220 = 22936877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23985473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 235101 + ... + 235202.

It is an arithmetic number, because the mean of its divisors is an integer number (4232736).

Almost surely, 223985453 is an apocalyptic number.

It is an amenable number.

23985453 is a deficient number, since it is larger than the sum of its proper divisors (9876435).

23985453 is a wasteful number, since it uses less digits than its factorization.

23985453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470323.

The product of its digits is 129600, while the sum is 39.

The square root of 23985453 is about 4897.4945635498. The cubic root of 23985453 is about 288.3916233814.

The spelling of 23985453 in words is "twenty-three million, nine hundred eighty-five thousand, four hundred fifty-three".

Divisors: 1 3 17 51 470303 1410909 7995151 23985453