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30507514 = 2113134989
BaseRepresentation
bin111010001100…
…0000111111010
32010101221102221
41310120013322
530302220024
63005514254
7520211122
oct164300772
963357387
1030507514
1116247824
12a27298a
136421cab
1440a1c82
152a293e4
hex1d181fa

30507514 has 8 divisors (see below), whose sum is σ = 46166580. Its totient is φ = 15118656.

The previous prime is 30507497. The next prime is 30507517. The reversal of 30507514 is 41570503.

It can be written as a sum of positive squares in 2 ways, for example, as 30437289 + 70225 = 5517^2 + 265^2 .

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

It is not an unprimeable number, because it can be changed into a prime (30507517) 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, 67269 + ... + 67720.

Almost surely, 230507514 is an apocalyptic number.

30507514 is a deficient number, since it is larger than the sum of its proper divisors (15659066).

30507514 is a wasteful number, since it uses less digits than its factorization.

30507514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135104.

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 30507514 is about 5523.3607522957. The cubic root of 30507514 is about 312.4656440097.

The spelling of 30507514 in words is "thirty million, five hundred seven thousand, five hundred fourteen".

Divisors: 1 2 113 226 134989 269978 15253757 30507514