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30390496 = 251019403
BaseRepresentation
bin111001111101…
…1100011100000
32010011222220221
41303323203200
530234443441
63003212424
7516213013
oct163734340
963158827
1030390496
1116177914
12a217114
1363b0956
14407137a
152a048d1
hex1cfb8e0

30390496 has 24 divisors (see below), whose sum is σ = 60430104. Its totient is φ = 15043200.

The previous prime is 30390491. The next prime is 30390497. The reversal of 30390496 is 69409303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30390491) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1470 + ... + 7933.

It is an arithmetic number, because the mean of its divisors is an integer number (2517921).

Almost surely, 230390496 is an apocalyptic number.

It is an amenable number.

30390496 is a deficient number, since it is larger than the sum of its proper divisors (30039608).

30390496 is a wasteful number, since it uses less digits than its factorization.

30390496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9514 (or 9506 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 34.

The square root of 30390496 is about 5512.7575676788. The cubic root of 30390496 is about 312.0656228392.

Adding to 30390496 its reverse (69409303), we get a palindrome (99799799).

The spelling of 30390496 in words is "thirty million, three hundred ninety thousand, four hundred ninety-six".

Divisors: 1 2 4 8 16 32 101 202 404 808 1616 3232 9403 18806 37612 75224 150448 300896 949703 1899406 3798812 7597624 15195248 30390496