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30352442 = 215839587
BaseRepresentation
bin111001111001…
…0010000111010
32010010001201112
41303302100322
530232234232
63002320322
7515664041
oct163622072
963101645
1030352442
111615126a
12a1b90a2
136399533
144061558
1529e84b2
hex1cf243a

30352442 has 8 divisors (see below), whose sum is σ = 45562176. Its totient is φ = 15165052.

The previous prime is 30352409. The next prime is 30352477. The reversal of 30352442 is 24425303.

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1628 + ... + 7959.

It is an arithmetic number, because the mean of its divisors is an integer number (5695272).

Almost surely, 230352442 is an apocalyptic number.

30352442 is a deficient number, since it is larger than the sum of its proper divisors (15209734).

30352442 is a wasteful number, since it uses less digits than its factorization.

30352442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11172.

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 30352442 is about 5509.3050378428. The cubic root of 30352442 is about 311.9353155955.

Adding to 30352442 its reverse (24425303), we get a palindrome (54777745).

The spelling of 30352442 in words is "thirty million, three hundred fifty-two thousand, four hundred forty-two".

Divisors: 1 2 1583 3166 9587 19174 15176221 30352442