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30330487 = 112757317
BaseRepresentation
bin111001110110…
…0111001110111
32010001221121101
41303230321313
530231033422
63002030531
7515543035
oct163547167
963057541
1030330487
1116136820
12a1a8447
13638c545
144057555
1529e1c27
hex1cece77

30330487 has 4 divisors (see below), whose sum is σ = 33087816. Its totient is φ = 27573160.

The previous prime is 30330467. The next prime is 30330497. The reversal of 30330487 is 78403303.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 30330487 - 219 = 29806199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30330407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1378648 + ... + 1378669.

It is an arithmetic number, because the mean of its divisors is an integer number (8271954).

Almost surely, 230330487 is an apocalyptic number.

30330487 is a deficient number, since it is larger than the sum of its proper divisors (2757329).

30330487 is a wasteful number, since it uses less digits than its factorization.

30330487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2757328.

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 30330487 is about 5507.3121393289. The cubic root of 30330487 is about 311.8600861540.

The spelling of 30330487 in words is "thirty million, three hundred thirty thousand, four hundred eighty-seven".

Divisors: 1 11 2757317 30330487