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30105115 = 517933637
BaseRepresentation
bin111001011010…
…1111000011011
32002122111110021
41302311320123
530201330430
62553131311
7513614005
oct162657033
962574407
1030105115
1115aa2467
12a0b9b37
136310aa1
143dd9375
15299a07a
hex1cb5e1b

30105115 has 8 divisors (see below), whose sum is σ = 36329040. Its totient is φ = 23948832.

The previous prime is 30105109. The next prime is 30105151. The reversal of 30105115 is 51150103.

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

It is a cyclic number.

It is not a de Polignac number, because 30105115 - 213 = 30096923 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15924 + ... + 17713.

It is an arithmetic number, because the mean of its divisors is an integer number (4541130).

Almost surely, 230105115 is an apocalyptic number.

30105115 is a deficient number, since it is larger than the sum of its proper divisors (6223925).

30105115 is a wasteful number, since it uses less digits than its factorization.

30105115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33821.

The product of its (nonzero) digits is 75, while the sum is 16.

The square root of 30105115 is about 5486.8128271338. The cubic root of 30105115 is about 311.0857350570.

Adding to 30105115 its reverse (51150103), we get a palindrome (81255218).

The spelling of 30105115 in words is "thirty million, one hundred five thousand, one hundred fifteen".

Divisors: 1 5 179 895 33637 168185 6021023 30105115