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30142017 = 331116371
BaseRepresentation
bin111001011111…
…0111001000001
32002201101002000
41302332321001
530204021032
62554014213
7514126413
oct162767101
962641060
1030142017
1116018164
12a117369
136324819
1440089b3
1529a5e7c
hex1cbee41

30142017 has 8 divisors (see below), whose sum is σ = 44654880. Its totient is φ = 20094660.

The previous prime is 30142009. The next prime is 30142039. The reversal of 30142017 is 71024103.

It is not a de Polignac number, because 30142017 - 23 = 30142009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30142817) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 558159 + ... + 558212.

It is an arithmetic number, because the mean of its divisors is an integer number (5581860).

Almost surely, 230142017 is an apocalyptic number.

It is an amenable number.

30142017 is a deficient number, since it is larger than the sum of its proper divisors (14512863).

30142017 is a wasteful number, since it uses less digits than its factorization.

30142017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1116380 (or 1116374 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 30142017 is about 5490.1745873879. The cubic root of 30142017 is about 311.2127898615.

The spelling of 30142017 in words is "thirty million, one hundred forty-two thousand, seventeen".

Divisors: 1 3 9 27 1116371 3349113 10047339 30142017