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52305663 = 379220699
BaseRepresentation
bin1100011110000…
…1111011111111
310122102101212210
43013201323333
5101342240123
65105031503
71203406434
oct307417377
9118371783
1052305663
1127586023
1215625593
13aab49c7
146d37b8b
1548d2e93
hex31e1eff

52305663 has 8 divisors (see below), whose sum is σ = 70624000. Its totient is φ = 34428888.

The previous prime is 52305637. The next prime is 52305691. The reversal of 52305663 is 36650325.

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

It is not a de Polignac number, because 52305663 - 26 = 52305599 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52305663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52305163) 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, 110113 + ... + 110586.

It is an arithmetic number, because the mean of its divisors is an integer number (8828000).

Almost surely, 252305663 is an apocalyptic number.

52305663 is a deficient number, since it is larger than the sum of its proper divisors (18318337).

52305663 is a wasteful number, since it uses less digits than its factorization.

52305663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220781.

The product of its (nonzero) digits is 16200, while the sum is 30.

The square root of 52305663 is about 7232.2654127182. The cubic root of 52305663 is about 373.9810274723.

Adding to 52305663 its reverse (36650325), we get a palindrome (88955988).

The spelling of 52305663 in words is "fifty-two million, three hundred five thousand, six hundred sixty-three".

Divisors: 1 3 79 237 220699 662097 17435221 52305663