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30350042 = 273207877
BaseRepresentation
bin111001111000…
…1101011011010
32010002221102122
41303301223122
530232200132
63002301242
7515654042
oct163615332
963087378
1030350042
111614a488
12a1b7822
136398408
144060722
1529e7912
hex1cf1ada

30350042 has 8 divisors (see below), whose sum is σ = 46148916. Its totient is φ = 14967072.

The previous prime is 30349993. The next prime is 30350051. The reversal of 30350042 is 24005303.

It can be written as a sum of positive squares in 2 ways, for example, as 30349081 + 961 = 5509^2 + 31^2 .

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

It is a super-2 number, since 2×303500422 = 1842250098803528, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30350042.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103793 + ... + 104084.

Almost surely, 230350042 is an apocalyptic number.

30350042 is a deficient number, since it is larger than the sum of its proper divisors (15798874).

30350042 is a wasteful number, since it uses less digits than its factorization.

30350042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207952.

The product of its (nonzero) digits is 360, while the sum is 17.

The square root of 30350042 is about 5509.0872202208. The cubic root of 30350042 is about 311.9270936926.

Adding to 30350042 its reverse (24005303), we get a palindrome (54355345).

The spelling of 30350042 in words is "thirty million, three hundred fifty thousand, forty-two".

Divisors: 1 2 73 146 207877 415754 15175021 30350042