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30393448 = 2319119891
BaseRepresentation
bin111001111110…
…0010001101000
32010012010222021
41303330101220
530240042243
63003234224
7516224431
oct163742150
963163867
1030393448
111617a058
12a218974
1363b20b7
144072488
152a056ed
hex1cfc468

30393448 has 16 divisors (see below), whose sum is σ = 57288960. Its totient is φ = 15116400.

The previous prime is 30393427. The next prime is 30393449. The reversal of 30393448 is 84439303.

It is not an unprimeable number, because it can be changed into a prime (30393449) 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 3 ways as a sum of consecutive naturals, for example, 8418 + ... + 11473.

It is an arithmetic number, because the mean of its divisors is an integer number (3580560).

Almost surely, 230393448 is an apocalyptic number.

It is an amenable number.

30393448 is a deficient number, since it is larger than the sum of its proper divisors (26895512).

30393448 is a wasteful number, since it uses less digits than its factorization.

30393448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20088 (or 20084 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 34.

The square root of 30393448 is about 5513.0253037692. The cubic root of 30393448 is about 312.0757267424.

The spelling of 30393448 in words is "thirty million, three hundred ninety-three thousand, four hundred forty-eight".

Divisors: 1 2 4 8 191 382 764 1528 19891 39782 79564 159128 3799181 7598362 15196724 30393448