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30246705 = 3252412789
BaseRepresentation
bin111001101100…
…0011100110001
32002220200200100
41303120130301
530220343310
63000143013
7515043546
oct163303461
962820610
1030246705
1116089885
12a167a69
136360378
144034bcd
1529c6ec0
hex1cd8731

30246705 has 24 divisors (see below), whose sum is σ = 52664040. Its totient is φ = 16058880.

The previous prime is 30246691. The next prime is 30246707. The reversal of 30246705 is 50764203.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 7436529 + 22810176 = 2727^2 + 4776^2 .

It is not a de Polignac number, because 30246705 - 27 = 30246577 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30246707) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 9451 + ... + 12239.

It is an arithmetic number, because the mean of its divisors is an integer number (2194335).

Almost surely, 230246705 is an apocalyptic number.

It is an amenable number.

30246705 is a deficient number, since it is larger than the sum of its proper divisors (22417335).

30246705 is a wasteful number, since it uses less digits than its factorization.

30246705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3041 (or 3038 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 30246705 is about 5499.7004463880. The cubic root of 30246705 is about 311.5726706482.

The spelling of 30246705 in words is "thirty million, two hundred forty-six thousand, seven hundred five".

Divisors: 1 3 5 9 15 45 241 723 1205 2169 2789 3615 8367 10845 13945 25101 41835 125505 672149 2016447 3360745 6049341 10082235 30246705