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30270458 = 219796591
BaseRepresentation
bin111001101111…
…0001111111010
32002221220021002
41303132033322
530222123313
63000445002
7515203031
oct163361772
962856232
1030270458
11160a5709
12a179762
13636b11a
14403d718
1529ce058
hex1cde3fa

30270458 has 8 divisors (see below), whose sum is σ = 47795520. Its totient is φ = 14338620.

The previous prime is 30270451. The next prime is 30270463. The reversal of 30270458 is 85407203.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 30270458.

It is not an unprimeable number, because it can be changed into a prime (30270451) 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, 398258 + ... + 398333.

It is an arithmetic number, because the mean of its divisors is an integer number (5974440).

Almost surely, 230270458 is an apocalyptic number.

30270458 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

30270458 is a deficient number, since it is larger than the sum of its proper divisors (17525062).

30270458 is a wasteful number, since it uses less digits than its factorization.

30270458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 796612.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 30270458 is about 5501.8595038405. The cubic root of 30270458 is about 311.6542095485.

The spelling of 30270458 in words is "thirty million, two hundred seventy thousand, four hundred fifty-eight".

Divisors: 1 2 19 38 796591 1593182 15135229 30270458