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30016143 = 331958511
BaseRepresentation
bin111001010000…
…0001010001111
32002110222102000
41302200022033
530141004033
62551203343
7513063423
oct162401217
962428360
1030016143
1115a41633
12a076553
1362ac441
143db4b83
15297da13
hex1ca028f

30016143 has 16 divisors (see below), whose sum is σ = 46809600. Its totient is φ = 18957240.

The previous prime is 30016121. The next prime is 30016159. The reversal of 30016143 is 34161003.

It is not a de Polignac number, because 30016143 - 25 = 30016111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30016183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28743 + ... + 29768.

It is an arithmetic number, because the mean of its divisors is an integer number (2925600).

Almost surely, 230016143 is an apocalyptic number.

30016143 is a deficient number, since it is larger than the sum of its proper divisors (16793457).

30016143 is a wasteful number, since it uses less digits than its factorization.

30016143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58539 (or 58533 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 30016143 is about 5478.6990244035. The cubic root of 30016143 is about 310.7789739954.

Adding to 30016143 its reverse (34161003), we get a palindrome (64177146).

The spelling of 30016143 in words is "thirty million, sixteen thousand, one hundred forty-three".

Divisors: 1 3 9 19 27 57 171 513 58511 175533 526599 1111709 1579797 3335127 10005381 30016143