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30700370 = 253070037
BaseRepresentation
bin111010100011…
…1001101010010
32010202201222202
41311013031102
530324402440
63014003202
7521643311
oct165071522
963681882
1030700370
1116369708
12a346502
13648b9cc
144112278
152a66615
hex1d47352

30700370 has 8 divisors (see below), whose sum is σ = 55260684. Its totient is φ = 12280144.

The previous prime is 30700367. The next prime is 30700379. The reversal of 30700370 is 7300703.

It can be written as a sum of positive squares in 2 ways, for example, as 30327049 + 373321 = 5507^2 + 611^2 .

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

It is not an unprimeable number, because it can be changed into a prime (30700379) 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 3 ways as a sum of consecutive naturals, for example, 1535009 + ... + 1535028.

Almost surely, 230700370 is an apocalyptic number.

30700370 is a deficient number, since it is larger than the sum of its proper divisors (24560314).

30700370 is a wasteful number, since it uses less digits than its factorization.

30700370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3070044.

The product of its (nonzero) digits is 441, while the sum is 20.

The square root of 30700370 is about 5540.7914597104. The cubic root of 30700370 is about 313.1226880067.

The spelling of 30700370 in words is "thirty million, seven hundred thousand, three hundred seventy".

Divisors: 1 2 5 10 3070037 6140074 15350185 30700370