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30152015 = 541147083
BaseRepresentation
bin111001100000…
…1010101001111
32002201212210022
41303001111033
530204331030
62554132355
7514200515
oct163012517
962655708
1030152015
1116024723
12a1210bb
13632923a
14400c4b5
1529a8de5
hex1cc154f

30152015 has 8 divisors (see below), whose sum is σ = 37065168. Its totient is φ = 23533120.

The previous prime is 30151973. The next prime is 30152021. The reversal of 30152015 is 51025103.

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

It is not a de Polignac number, because 30152015 - 26 = 30151951 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30151984 and 30152002.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 73337 + ... + 73746.

It is an arithmetic number, because the mean of its divisors is an integer number (4633146).

Almost surely, 230152015 is an apocalyptic number.

30152015 is a deficient number, since it is larger than the sum of its proper divisors (6913153).

30152015 is a wasteful number, since it uses less digits than its factorization.

30152015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147129.

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 30152015 is about 5491.0850476022. The cubic root of 30152015 is about 311.2471954501.

Adding to 30152015 its reverse (51025103), we get a palindrome (81177118).

The spelling of 30152015 in words is "thirty million, one hundred fifty-two thousand, fifteen".

Divisors: 1 5 41 205 147083 735415 6030403 30152015