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30315044 = 2210517211
BaseRepresentation
bin111001110100…
…1001000100100
32010001011102102
41303221020210
530230040134
63001431232
7515450024
oct163511044
963034372
1030315044
1116126161
12a19b518
1363854c6
144051a84
1529dc37e
hex1ce9224

30315044 has 12 divisors (see below), whose sum is σ = 53109168. Its totient is φ = 15141000.

The previous prime is 30315023. The next prime is 30315059. The reversal of 30315044 is 44051303.

It is a hoax number, since the sum of its digits (20) coincides with the sum of the digits of its distinct prime factors.

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, 599 + ... + 7809.

It is an arithmetic number, because the mean of its divisors is an integer number (4425764).

Almost surely, 230315044 is an apocalyptic number.

It is an amenable number.

30315044 is a deficient number, since it is larger than the sum of its proper divisors (22794124).

30315044 is a wasteful number, since it uses less digits than its factorization.

30315044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8266 (or 8264 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 30315044 is about 5505.9099157178. The cubic root of 30315044 is about 311.8071485171.

Adding to 30315044 its reverse (44051303), we get a palindrome (74366347).

The spelling of 30315044 in words is "thirty million, three hundred fifteen thousand, forty-four".

Divisors: 1 2 4 1051 2102 4204 7211 14422 28844 7578761 15157522 30315044