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30355199 = 729149533
BaseRepresentation
bin111001111001…
…0111011111111
32010010012111122
41303302323333
530232331244
63002341155
7516005060
oct163627377
963105448
1030355199
1116153346
12a1ba7bb
13639a874
144062567
1529e91ee
hex1cf2eff

30355199 has 8 divisors (see below), whose sum is σ = 35888160. Its totient is φ = 25121376.

The previous prime is 30355181. The next prime is 30355201. The reversal of 30355199 is 99155303.

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

It is not a de Polignac number, because 30355199 - 216 = 30289663 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30355109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74564 + ... + 74969.

It is an arithmetic number, because the mean of its divisors is an integer number (4486020).

Almost surely, 230355199 is an apocalyptic number.

30355199 is a deficient number, since it is larger than the sum of its proper divisors (5532961).

30355199 is a wasteful number, since it uses less digits than its factorization.

30355199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149569.

The product of its (nonzero) digits is 18225, while the sum is 35.

The square root of 30355199 is about 5509.5552452081. Note that the first 3 decimals coincide. The cubic root of 30355199 is about 311.9447599715.

The spelling of 30355199 in words is "thirty million, three hundred fifty-five thousand, one hundred ninety-nine".

Divisors: 1 7 29 203 149533 1046731 4336457 30355199