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30305329 = 238231601
BaseRepresentation
bin111001110011…
…0110000110001
32010000200002121
41303212300301
530224232304
63001314241
7515406505
oct163466061
963020077
1030305329
111611992a
12a195981
136380c62
14404c305
1529d9554
hex1ce6c31

30305329 has 8 divisors (see below), whose sum is σ = 31681152. Its totient is φ = 28934400.

The previous prime is 30305311. The next prime is 30305333. The reversal of 30305329 is 92350303.

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 30305329 - 27 = 30305201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30305309) 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, 18129 + ... + 19729.

It is an arithmetic number, because the mean of its divisors is an integer number (3960144).

Almost surely, 230305329 is an apocalyptic number.

It is an amenable number.

30305329 is a deficient number, since it is larger than the sum of its proper divisors (1375823).

30305329 is a wasteful number, since it uses less digits than its factorization.

30305329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2447.

The product of its (nonzero) digits is 2430, while the sum is 25.

The square root of 30305329 is about 5505.0276111932. The cubic root of 30305329 is about 311.7738368925.

It can be divided in two parts, 30305 and 329, that multiplied together give a triangular number (9970345 = T4465).

The spelling of 30305329 in words is "thirty million, three hundred five thousand, three hundred twenty-nine".

Divisors: 1 23 823 1601 18929 36823 1317623 30305329