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30658142 = 218184691
BaseRepresentation
bin111010011110…
…0111001011110
32010200121001202
41310330321132
530322030032
63013035502
7521406224
oct164747136
963617052
1030658142
111633aa09
12a325b92
136475718
144100b14
152a58d62
hex1d3ce5e

30658142 has 8 divisors (see below), whose sum is σ = 46241832. Its totient is φ = 15244200.

The previous prime is 30658129. The next prime is 30658151. The reversal of 30658142 is 24185603.

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

It is a congruent number.

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, 41984 + ... + 42707.

It is an arithmetic number, because the mean of its divisors is an integer number (5780229).

Almost surely, 230658142 is an apocalyptic number.

30658142 is a deficient number, since it is larger than the sum of its proper divisors (15583690).

30658142 is a wasteful number, since it uses less digits than its factorization.

30658142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84874.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 30658142 is about 5536.9795014972. The cubic root of 30658142 is about 312.9790566000.

The spelling of 30658142 in words is "thirty million, six hundred fifty-eight thousand, one hundred forty-two".

Divisors: 1 2 181 362 84691 169382 15329071 30658142