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30115394 = 243350179
BaseRepresentation
bin111001011100…
…0011001000010
32002200000112222
41302320121002
530202143034
62553251042
7513655661
oct162703102
962600488
1030115394
1115aaa161
12a103a82
13631567a
143ddcdd8
15299d12e
hex1cb8642

30115394 has 8 divisors (see below), whose sum is σ = 46223760. Its totient is φ = 14707476.

The previous prime is 30115387. The next prime is 30115403. The reversal of 30115394 is 49351103.

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 175004 + ... + 175175.

It is an arithmetic number, because the mean of its divisors is an integer number (5777970).

Almost surely, 230115394 is an apocalyptic number.

30115394 is a deficient number, since it is larger than the sum of its proper divisors (16108366).

30115394 is a wasteful number, since it uses less digits than its factorization.

30115394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350224.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 30115394 is about 5487.7494476333. The cubic root of 30115394 is about 311.1211364211.

Adding to 30115394 its reverse (49351103), we get a palindrome (79466497).

The spelling of 30115394 in words is "thirty million, one hundred fifteen thousand, three hundred ninety-four".

Divisors: 1 2 43 86 350179 700358 15057697 30115394