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30236018 = 216790527
BaseRepresentation
bin111001101010…
…1110101110010
32002220011000112
41303111311302
530220023033
63000021322
7515000441
oct163256562
962804015
1030236018
111608184a
12a161842
136358547
144030d58
1529c3c48
hex1cd5d72

30236018 has 8 divisors (see below), whose sum is σ = 45626112. Its totient is φ = 15027316.

The previous prime is 30235999. The next prime is 30236021. The reversal of 30236018 is 81063203.

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

It is a junction number, because it is equal to n+sod(n) for n = 30235984 and 30236002.

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, 44930 + ... + 45597.

It is an arithmetic number, because the mean of its divisors is an integer number (5703264).

Almost surely, 230236018 is an apocalyptic number.

30236018 is a deficient number, since it is larger than the sum of its proper divisors (15390094).

30236018 is a wasteful number, since it uses less digits than its factorization.

30236018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90696.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 30236018 is about 5498.7287621777. The cubic root of 30236018 is about 311.5359705693.

The spelling of 30236018 in words is "thirty million, two hundred thirty-six thousand, eighteen".

Divisors: 1 2 167 334 90527 181054 15118009 30236018