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30208593 = 329334367
BaseRepresentation
bin111001100111…
…1001001010001
32002211202101210
41303033021101
530213133333
62555250333
7514524462
oct163171121
962752353
1030208593
1116063188
12a1499a9
136348c0c
144024d69
1529baa63
hex1ccf251

30208593 has 8 divisors (see below), whose sum is σ = 40416768. Its totient is φ = 20069744.

The previous prime is 30208589. The next prime is 30208621. The reversal of 30208593 is 39580203.

It is a happy number.

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 30208593 - 22 = 30208589 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30208593.

It is not an unprimeable number, because it can be changed into a prime (30208523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16305 + ... + 18062.

It is an arithmetic number, because the mean of its divisors is an integer number (5052096).

Almost surely, 230208593 is an apocalyptic number.

It is an amenable number.

30208593 is a deficient number, since it is larger than the sum of its proper divisors (10208175).

30208593 is a wasteful number, since it uses less digits than its factorization.

30208593 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34663.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 30208593 is about 5496.2344382313. The cubic root of 30208593 is about 311.4417511687.

Adding to 30208593 its reverse (39580203), we get a palindrome (69788796).

The spelling of 30208593 in words is "thirty million, two hundred eight thousand, five hundred ninety-three".

Divisors: 1 3 293 879 34367 103101 10069531 30208593